I’ll trying to see if me helping my partner is the right thing here. I promised both my partner I’d help move them out of their dorm and my mom that I’d go on a BSA camping trip with them. The problem is I didn’t realize the dates were the same. I told my mom about it and she assumed I was going camping. I told her that because my partner asked first I’d be helping them move out. She was not happy. She’s claiming that this was gonna be our one and only family trip this year. I told her I know this, but I already had the prior commitment. My partners mom can help move them out, but their dad cannot as he needs to move his new stepson and they can’t rent a U-Haul because they’re going through a divorce right now. They need it for the move stuff from the house. I called my mom because she said she needed my car. I told her she can’t have my car for the camping trip because I needed to help move my partner out. We then got into a huge argument to the point where she said there’s a chance that I get kicked out of the house am I the asshole?
Update: I’m usually the one to help around the house when asked on account that dad works late and my brother is still in school/ after school activities. My partner asked me a whole day before my mom did and mom didn’t tell me the date so I assumed it was the weekend after.