Responses
As far as I saw Dominic met ray's mother when he was a kid and got crush on her. And when he saw his crush with another man he was jealous (I mean wtf). And Ray's mother got really weak after giving birth to Ray (if I am not wrong) and eventually died but don't know what happened to his father. I don’t think it was mentioned here.
i see, Dominic liked Lily- Raymond's mother but ended up with another man and have a child. Maybe Raymond's parents disappearance(i forgot if it's mentioned if they died or not) might have been involved with Dominic