AITA for refusing to help my husband out on Spring break with our kids when he had spring break with his kids to spend with his first child?

My husband and I have 2 kids together. I also have a 3 year old daughter that's my husband's biological daughter as well. Her mother passed away when she was 1. We got married when my daughter was 2 and a half. This is the first spring break they've all had so he would like for his 3 kids to spend time together by all of us going out of town. I'd rather stay home and stay out of the way while he and his kids hang out.<br><br>My husband thinks that since they're all siblings, they should experience things together like he would like to with his 3 siblings. I don't see why it is a big deal, but my husband said I was being selfish and ruining the experience for our kids. I told him we could come along to spend time with him and his kids but he said it should be us all together and my daughter isn't just his so I should let go of the parenting style I had for her prior to us getting married.<br><br>I said that I wasn't saying no to them spending time together. All I was saying is my daughter and I would rather stay behind. My husband said that I was invalidating their experience. He thinks my daughter and I are stopping him from making his children happy and bonding.