AITA for refusing to attend my sister’s wedding and saying I don’t care about keeping up appearances?

A 21-year-old woman has decided not to attend her 23-year-old sister’s wedding after years of being denied as a sister due to her mental illness. From middle school onward, her sister was embarrassed by her anxiety, depression, and breakdowns—openly telling people they weren’t related, calling her a “miserable freak,” and refusing to be seen with her in public. Even during family therapy, the sister mocked her intrusive thoughts.

Now engaged and planning her wedding, the sister suddenly needs her there to avoid questions from in-laws and “keep up appearances.” Her fiancé even told her to “take her meds” and “practice smiling” so no one notices how “weird” she is. The parents are pressuring her to go, saying it would look bad if she didn’t. She refused and told them she doesn’t care about appearances. Now she’s wondering if she’s wrong for standing her ground.

‘AITA for refusing to attend my sister’s wedding and saying I don’t care about keeping up appearances?’

The sisters were never close, and things worsened in middle school:

She refused family outings and mocked her in therapy:

The wedding drama escalated:

This story reveals deep family dysfunction: a sister who weaponized her sibling’s mental illness for social status, parents who enabled the behavior instead of protecting the vulnerable child, and ongoing pressure to “keep up appearances” at the expense of the daughter’s well-being. The sister’s lifelong denial and mockery constitute emotional abuse—public humiliation that likely worsened the OP’s mental health struggles.

The wedding demand is manipulative: the sister only wants her there for optics, not reconciliation. Telling her to “take meds” and “practice smiling” is cruel and ableist. The parents’ focus on appearances over their daughter’s pain shows misplaced priorities—protecting the image of the “perfect” family instead of addressing the harm.

Family therapist Dr. Ramani Durvasula explains: “When one sibling is scapegoated for mental illness, it creates lifelong trauma. Forcing the victim to perform ‘normalcy’ for the abuser’s wedding perpetuates the abuse cycle. The victim is not obligated to participate in events that trigger pain or demand fake unity.”

Practical advice: The OP is right to refuse attendance—protecting mental health comes first. She should set firm boundaries with parents: “I won’t discuss the wedding or attend events where I’m treated as a burden.” Therapy can help process the trauma and grief. Going low/no-contact with the sister is valid if contact causes harm. She owes no one “appearances” at the cost of her peace. Her worth isn’t defined by her sister’s shame.

Let’s dive into the reactions from Reddit:

The online community overwhelmingly supported the OP as NTA, condemning the sister’s cruelty, the parents’ enabling, and the fiancé’s ableism. Many urged no-contact and praised her for standing up.

Most agreed she owes her sister nothing after years of denial and mockery:

Some people acknowledge that not going might cause drama, but it’s perfectly reasonable:

This heartbreaking story shows how deeply family denial and ableism can wound someone—especially when parents prioritize appearances over protection. The sister’s lifelong rejection and the parents’ pressure to “perform” for the wedding are cruel. Refusing to attend and prioritizing mental health is completely valid.

What do you think? Have you ever had to choose between family events and your own well-being? Would you attend a wedding where you’re not truly wanted? Share your thoughts below—we’d love to hear your experiences!