Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input: I have two children with my ex, who are 13 and 15. My wife and I have been married for 10 years.

If you're wondering why I'm thinking about Mother's Day in February, it's because my ex rents out a room and does a huge party with her whole family and the kids every year. I usually do not go to that, because while my ex and I co parent fairly well, it's just always a little uncomfortable for us to be together.

My wife has said she felt left out of the Mother's Day celebration for years but agreed that they should spend the day with their real mom instead. However, my ex decided to invite my wife this year, I guess because the kids asked her to, but I don't know for sure. My wife got really excited and really wants to go, but I feel weird about it. I just don't like the idea of my ex and my wife being too close and this feels like a boundary being crossed. I want to say no, but I don't want to upset my wife. I also don't want to ruin a good co parenting relationship, but I don't want this situation (and my ex) to interfere with my marriage either. AITA?

not wanting my wife to do Mother's Day with my ex