Cause he's a bully.
He thinks of himself and his comforts first and foremost. And it's hard to deal with him...and he preys on the weak. And my mom married him right out of high school when she was just that: insecure, unsure of herself, scared of the world, and painfully shy (though she had offers to go to Harvard he convinced her they
had to be together and because my mom was really shy...he used this to make her feel like she
needed him and he would protect her from the world. Later he says that he knew she was
going somewhere...but that didn't pan out. I think it's because of him
And my mom is getting it together but it took her years. Because my dad is one of those people who is so wonderful, and then critical, until he has you under his mental mind weld of "gaslighting" b.s and then you think you're scum on the bottom of a shoe). He's actually trying to get better because my mom pointed out that my brother never comes to see them (in a decade and always makes excuses) and that I have threatened to cut him off (and if I do because of his bs she's leaving for good because he isn't going to take everyone from her. And I also told him he couldn't walk me down the aisle or say a speech at the wedding. So now he's all pitiful like what did I do? And he's backing off a little with everyone). SO after decades of b.s my mom is now tired and starting to assert herself.