Just to clarify, James didn’t actually tell Victor to stop Natalie from doing anything promiscuous, but to report any promiscuous behavior back to him later. Victor told him that he really didn’t think Natalie would try anything like that with him, to which James replied that it was mainly Paulie he was worried about her being promiscuous with, not Vic. Still, I hope Natalie doesn’t attempt a long distance relationship with someone who’s already letting his paranoia show like this, but just to set the record straight James wasn't telling Vic to keep her in check or anything like that.