It’s my experience that men hang around with people that they have a use for, or a potential use for. So if you’re a woman and he’s hanging around with you, then it’s probably just until he comes across someone who he has more of a use for or who has access to stuff he wants to use more, whether it is a boat, golf course, vagina, or you make good sandwiches/live near his favorite bar or have a cool dog/listen to him talk.