Most Helpful Guy
Most Helpful Girl
Yes he can. Actually, it depends on how much he has been attached to the person.
We all eventually miss someone in our lives. Yes, even our exes. As a girl I can tell you that if a guy still has feels for you, and can't get over you, and has someone else, he regrets it because he has realised his mistake + he is using her as a rebound love (to get over you).