Mature GUYS: Would you wife a girl up if she..?

Honestly, you're doing nothing wrong. I'm a guy and use to act the same way that he does. He clearly just has trust issues and just needs to mature a little bit. If he trusted you then he wouldn't care. If you really wana stay with him just reassure him that he can trust you and the party girl is not influencing your life in a negative way. He may also be jealous that your out late hes not. Try to invite him once in a while. Show him what your doing when your out and he'll trust you.