After you get your ring back I would delete this guy from your phone and that be that. He doesn't sound like much of a gentleman at all. In fact, he sounds like he likes the thrill of the chase when it suits him yet he can't offer you the common courtesy to contact you about returning an item YOU left behind when YOU went to his house. Very rude given what has happened IMO.

I am glad you don't feel bad but I would not have much to do with this man again!