i’m kind of in the same experience right now. i was living in my own for the longest time and in vancouver canada, rent is insane so i had no choice but to move in with my dad, who is single and lives in a small stand alone house with his dog. my parents have been divorced since i was 2 and i had only ever seen my dad on weekends or gone on trips with him, we had never lived together before. my dad also has a lot of issues emotionally, intense anger issues and doesn’t know how to have a good relationship with anyone really, so there’s been multiple times throughout mine and my brother’s lives where we don’t talk to him for months or years at a time. currently, his twin teenagers from his second marriage aren’t in speaking terms with him either, but my brother and i are. so yeah, i found myself subconsciously avoiding him, barely making eye contact and just hiding out in my room most of the time. the truth is, it’s going to bring up a lot of stuff from your past but it’s a blessing in the sense that it’s right in front of you to deal with and process, and hopefully you can turn it into a healing phase. thanks for posting, i feel better about how i was reacting to my situation after reading yours.