“AITA For Telling My BIL That Someone Is Going To Punch His Girlfriend One Day?”

This situation started at a wedding that was meant to be a happy family event. The original poster (OP) was there with their boyfriend to celebrate OP’s sister’s wedding. At first, everything seemed normal, with drinks, music, and people enjoying the day. However, one guest named “Sally” had already acted in a strange and uncomfortable way at the engagement party before the wedding.

At the wedding, Sally’s behavior got worse. She approached OP’s boyfriend, stood very close to him, and did not move away even when he tried to create space. OP felt uncomfortable watching this and stepped in to stop it. In the moment, OP reacted strongly and told Sally to stop behaving inappropriately, then took their boyfriend away from the situation.

A few days later, things escalated again. OP’s brother-in-law (BIL) asked OP to apologize, saying Sally was just naturally “flirty” and did not mean harm. OP disagreed and said that her behavior could eventually cause serious problems if it continued. This comment caused even more conflict within the family, and multiple arguments followed between different people involved.

Later, it came out that Sally had not been honest with OP’s BIL and had given different versions of what happened. When questioned, her story did not stay consistent. In the end, the BIL apologized, but the situation is still unresolved because he is unsure about his relationship with Sally. The whole incident turned into a serious family conflict, showing how quickly misunderstandings, boundaries, and communication problems can escalate in social situations like weddings.

The poster’s elder sister and her fiancé are in a polyamorous relationship, but his girlfriend makes it her whole personality, wanting to be the center of attention