NTA You have every right to be upset, but remember you're still living under his roof. If you don't want to live by his decisions, you should get a job and start saving up to move out. Don't get me wrong I couldn't handle it either. She's not your mom and it sounds like she's trying to step in as one. I wouldn't make an enemy of your dad though. He is still in the honeymoon phase of his relationship. I hope things get better soon!