My Dad (75) and I'm 46. My dad talks down to me has my whole life and he thinks I should drop my life and move in with him and wait on him hand and foot. He calls me name and throws things all over his place. He treats me like trash what. He doesn't clean and just sits on his couch makes a mess and hea jealous of my boyfriend we been together 15 yrs. And my dad is bery jelous of him if i dont go over to my dads and do something for him he says stuff like your a b*tch i bet you do it for your kids or your boyfriend whom i hate cause you cate more for him then you do for me you dirty whore....omg what do i do please help it makes me hate my father
People treat you the way you let them. Give him fair warning and then, quit answering your phone and door. 75 isn't all that old. let him hire his work done.
Good luck.
The answer is very obvious (to outsiders) -- distance yourself from this abusive bully. But it is much harder to do than to say, because he built in a lot of buttons while you were growing up, and he knows how to push them.
Absolutely reduce your contact with this person, and while you are doing that please see a counselor for support. You deserve a chance at happiness.