Piece of shit

My father is a piece of actual fucking shit. Words cannot describe how terrible I feel for my mom for having to be married to him. He's so manipulative of her. It makes me so angry. Everytime she wants to do something fun like go shopping with me or one of her friends, he makes her feel super guilty about it. MEANWHILE, he hangs out with his friends all the time, goes places and doesn't tell her, etc, but if she wants to do something like that, she basically has to ask him. I find that absolutely fucking ridiculous. She literally does EVERYTHING for him and he's never grateful. She cooks for him, cleans up after him, gives him money when he asks, basically dresses him. (So everything but wipe his ass for him). When we go to my cousin's birthday party in July, my mom wants to stay the night because it's 3 hours away and she gets car sick. My dad is basically saying she can't. It makes me want to throw up. I can't deal with it anymore. He has threatened to leave us and take all the money ( even though he can't even go to the bank by himself because he got his name changed.) She can't divorce him because she doesn't make that much money and wouldn't be able to support herself. It makes me so sad. I just want her to have a better life and stop feeling like shit because of her husband.😔