Ok would a guy really waste his time on you if he didn't like you or care at all. Like,
Telling you he is interested, give you his cell number, tell you you can call it, telling you you can come visit him anytime. Telling you about his past relationships, and what he wants out of his future like his children. Ect
Well I'd say he's interested. Probably wants to start off as friends and see where things go. I'd say call him up and ask him out for coffee or a couple drinks. Something to break the ice between you 2. Him telling you about his past relationships could be that he's trying to tell you what he dislikes/likes in a relationship and telling you what he wants out of his future could mean he's looking for a girl who's ready for commitment.