you didn't even have a mother and life is a mess for you and your father. Ever since that accidental offspring he had with a random person, it's been hell. it's not that he's been abusive or anything bad to you but he's been neglecting you a lot, but not on purpose though, but unintentionally. He's trying his best to keep it together and it's been nothing but a difficult mess. he keeps forgetting about you because he keeps focusing on many things other than you. he's being a horrible father but not in a bad way, just like a father trying to give their son or daughter a good life but is failing. One day, you were sitting on a couch that was quite messy due to the obvious conditions of life. then your father came and suddenly hugged you tight while sobbing. Then he said

"I'm sorry that I'm a horrible father! I'm trying my best, okay?!"