I was with my GF for 3 years. In 1 month is my brother's wedding. She's fat and she complains a lot because of this and the thing that nothing will suits her. She says she doesn't care about that wedding and what she will wear and I told her that we'll get there, a few days before the wedding and we'll have a fight because of this and she will kill my entire joy for my brother.

I also told her that my entire family will be there so I want her to look decent, wear some make-up, a good looking dress. Again, she said she doesn't care about the wedding, but it's an important event for me, and she knew that.

This was enough for me tbh, because she doesn't want to change anything, she loves to complains and find excuses. No actions at all.

AITAH for breaking up with her?