Hey, I normally do not say much, but to me (45 Married Male) its seems that is he truely wants friends, then give him a name and number (after getting permission) to a man in your church. Then say something along these lines "we have no business being friends it would not be proper." (If he wants to discuss the why) say "call the name and number" that you give him.

Hope this does not sound to cold, but it sounds like he is looking for female attention.