My father wants to reconnect after a long absence and I'm wondering if I'm in the right in wanting it to happen?

17 years ago, my relationship with my father was cut off. I had been raised by my mother and husband being abused most of the time by him. Being made to do most of the work around the house and being hit were common. When the pair of them were coming out of a fight it came out that I wasn't his son (to my relief) and elements of my father's identity came out. I sought him out and eventually succeeded. I was 13 and was elated to have made contact. So was he as he'd been wondering if anything had come about from when he and mother were together and always had the possibility of a child in the back of his mind. He was young at the time and didn't understand what he was doing. I won't say how. But, were peer pressure not involved his decision to carry on wouldn't have occurred. We built up a close bond by my mid teens when the treatment I'd been receiving became clear to him despite my trying to keep it quiet and we began to work on my moving in with him. At the time I was rather isolated in the countryside and didn't have internet access. With talking on the phone being impossible thanks to my parents we kept in touch, beyond our meeting, by way of mail. One day, after our having started to plan my letters began to come back. His fiance had been rejecting them at the door while sending false ones under my name. Ones that made him think I had come to hate him. They're about to be divorced now and the admission came out and he's trying to reach out to me now.