Toxic Parent

I hate this so much. My dad and I used to have a horrible relationship and it was to the point where we would scream at each other. Then it started with my sister and it was exponentially worse, it’s to the point where they haven’t talked for years and she’s just turned 18. He can just be so damn cold sometimes and I have yet to say something, but it sucks when I have a better relationship with him now, it’s not the best, but I talk to him. I think it really messed up my sister to the point where she’s gained a lot of weight and has depression quite often, yet he doesn’t seem to want to put his pride aside and apologize ever. My mom just acts like it’s not happening and I’m at the point of exploding because I get scared that this is the kind of man I’ll marry and I know that sounds horrible. But I just don’t understand how your pride can take hold of you to the point of blinding you and completely arranging you from your child. They have hate towards each other. I just get stressed about it and it ruins things for me every time I come home. I don’t even know what to do anymore.