My dad left my mom for my high school teacher and now they want me to be a bridesmaid

So, yeah. My dad (52M) cheated on my mom with my former English teacher (34F). It started while I was still in high school, apparently after I graduated, they “reconnected” and began dating openly.

At first, I didn’t want to believe it. The idea that my dad — the man who had always preached about family, responsibility, and loyalty — could betray my mom with someone who had been in a position of trust in my own life was surreal. I remember staring at my mom across the dinner table one evening, noticing the way her hands trembled as she sipped her tea, and realizing that the person I thought I knew was no longer the person I thought he was. My former teacher, someone I had once admired and looked up to, now became a symbol of deception. It was a betrayal that cut in two directions: one, for my mom, who had trusted him with her life and marriage; and another, for me, who had trusted her as a mentor, only to realize she had crossed a boundary that felt irreparably wrong.

The divorce came two years ago, slow and agonizing, marked by silent dinners, whispered arguments, and endless paperwork. My mom handled it with a kind of quiet dignity that I could barely match. I went low contact with my dad immediately. I couldn’t reconcile the image of the father I loved with the one who had been capable of such an intimate betrayal. He called occasionally, sent texts that attempted to bridge the gap, but each time I felt a knot form in my stomach. How do you forgive someone who has demonstrated so little respect for the people they claim to love?

I tried to tell myself it wasn’t personal — that adults sometimes make mistakes, that love is messy, that people fall in and out of relationships. But the more I thought about it, the more I realized this wasn’t about “mistakes.” This was about choice. My dad had actively chosen to betray my mom, and he had chosen to begin a relationship with someone who had once held a position of trust in my life. That choice, repeated and deliberate, made the betrayal feel both intimate and invasive. It wasn’t just a marital problem — it felt like a violation of my own sense of safety and trust in the adults around me.

Yesterday, he called. His voice was bright, almost triumphantly so. He wanted to “share some exciting news.” I braced myself, already knowing the kind of news that would push all the old anger and hurt to the surface. And sure enough — he was engaged. To her. My former English teacher. He said he wanted me to be one of her bridesmaids because we “go way back.”

For a moment, I laughed, thinking it had to be a joke. It wasn’t. He was entirely serious, expecting me to participate in a ceremony celebrating something that still felt wrong, something that had been at the center of my family’s heartbreak. He spoke as if the mere act of including me would erase the years of pain and betrayal. “It would mean a lot to show the world our families have healed,” he said, as if waving a magic wand could undo the emotional scars he had inflicted.

I couldn’t respond immediately. The words lodged in my throat. There was nothing “healed” about watching my teacher marry my dad, nothing celebratory about sitting in a room where my past trust and my mother’s dignity had been compromised. I told him as much. I said that I wasn’t ready, that I didn’t see any kind of “healing” that involved me participating in this narrative. His reaction was what I expected — dismissive. He said I was being dramatic and accused me of “still living in the past.”

Living in the past? How could he not see? The past, in this case, was alive. It existed in every lie, in every moment my mother spent crying in her bedroom, in every time I questioned the integrity of people I once admired. The past was not a memory I could tidy away; it was a present, tangible wound that demanded acknowledgment, not erasure. And yet, he acted as if my refusal to condense my grief into a smile and a bridesmaid’s dress was unreasonable.

The anger was immediate. I felt it swell like a storm in my chest, hot and heavy. I wanted to shout, to throw every grievance I had into the air and let it crash down around him. But I didn’t. Because the stakes were complicated. This was my father, after all, and despite everything, a part of me longed for some recognition from him — some acknowledgment that he had done wrong and that I was allowed to feel the consequences. Instead, I was faced with gaslighting, being told my feelings were exaggerated, my perspective skewed, my pain somehow unjustified.

I spent the evening replaying every memory, every interaction, trying to untangle the complicated web of emotions that had built up over the years. I remembered watching my mom cry quietly in the kitchen late at night, the way her hand would press against her forehead as if to physically push the betrayal out of her mind. I remembered walking past the house of my former teacher and feeling an odd mix of confusion and nausea. And I remembered the quiet dinners where my dad tried to normalize his choices, laughing as if the years of deception were a minor inconvenience rather than the seismic rupture they truly were.

I also thought about the kind of person I wanted to be — the person who could assert her boundaries without being silenced. Who could express anger without guilt, who could protect herself emotionally even when confronted with manipulative pleas. It became clear that agreeing to participate in their wedding would be a betrayal of myself, a denial of the trauma and injustice I had lived through. Accepting the role of bridesmaid would have been equivalent to endorsing the narrative my dad wanted to write — one in which the past was minimized, his choices excused, and my pain rendered invisible.

Sitting alone, I realized that my anger and hurt were valid. My refusal to participate was not stubbornness or pettiness; it was survival. It was a declaration that I would not allow my emotions to be co-opted into someone else’s story, and that the boundaries I set for myself were non-negotiable. It was also a painful acknowledgment that “family healing” cannot always be measured in weddings, photographs, or social appearances. True healing is internal, personal, and cannot be dictated by those who caused the harm.

I drafted a message to my dad, careful to maintain clarity and calm, despite the storm of emotion inside me. I wrote:

“Dad, I understand that this is an important moment for you and your fiancée. But I am not comfortable being part of your wedding. This situation is still painful for me, and I need to prioritize my own emotional well-being. I hope you can respect that boundary.”

Sending it felt like both a release and a confrontation. It was terrifying to imagine his response — anger, disappointment, attempts to guilt me into compliance. But I also felt a sense of liberation, a reclaiming of the authority over my own life and emotions that he had attempted to diminish for so many years.

In the days that followed, I thought more about the future. I realized that low contact was not just a temporary measure; it was a necessity for preserving my sanity and emotional stability. I did not need to force reconciliation, nor did I need to forgive before I was ready. Healing was not linear, and it did not require participation in events that symbolized a betrayal I was not prepared to normalize.

I also recognized the importance of support systems. Friends who validated my experience, a mother who still carried strength despite the pain, and therapists who could help me navigate the complex emotions all became anchors. These people reminded me that my feelings were not only justified, but crucial for my continued growth and resilience.

Through this process, I understood something fundamental: setting boundaries is an act of self-respect, not defiance. Saying no does not make me dramatic or petty. Refusing to participate in their wedding does not erase my capacity for love or forgiveness; it simply asserts that I will not allow my presence to be used as a tool for appearances or social performance. My identity, my experiences, and my emotions are valid and deserve protection.

Looking back, I can see the magnitude of what has happened. My father’s choices reshaped our family landscape, altering relationships, trust, and perception. My former teacher’s involvement complicated a situation already charged with betrayal, crossing lines that should never have been crossed. And yet, amidst the chaos, I found clarity: I am not responsible for their actions, and I am not obligated to participate in a narrative that disregards my feelings.

I don’t know what the wedding will be like, or if I will see them in public again. I don’t know if my father will ever acknowledge the hurt he caused beyond casual attempts at justification. But I do know that I am reclaiming my agency. I am learning to navigate family dynamics with boundaries, self-respect, and courage. And I am beginning to understand that healing is not about public appearances; it is about internal acknowledgment, emotional honesty, and personal empowerment.

At the end of the day, my refusal to be a bridesmaid is not a statement about my capacity to forgive or my love for my family. It is a statement that I am entitled to protect my emotional well-being. It is a statement that my experiences and feelings matter. And it is a statement that, despite the pain and confusion, I am capable of setting limits that preserve my dignity.

This is my story, and my response to it is mine to own. I will navigate this complex family terrain carefully, but I will do so with confidence and awareness. I am allowed to say no. I am allowed to feel hurt. And I am allowed to take the time I need to heal. In the end, family dynamics may be complicated and fraught with betrayal, but they do not define my self-worth or my right to stand firm in my choices.