Most Helpful Guy
Is he in his twenties? One possibility would be that his current girlfriend doesn't put out OR you're better in bed. You could try and convince him to get back with you. Prepare for the gf's animosity, though.
Most Helpful Girl
thats very common with some men , they dont leave their current girl till they get an assurance from the next and its not cheating according to them. In this case he may be trying to get back to you , still holding on to someone could also mean he wants to make you jealous.