There’s nothing worse to a player than your unwillingness to correspond to his ‘traps’ and actions.
While he might deliberately be trying to make you jealous, show him that you couldn’t care less about it because you’re not into him after all (so why would you be jealous in the first place?)
If he shows up at the bar with some chick, be polite and say hi.
If he makes moves on your friends, smile and have the best time of your life.
Show him that he has nothing on you, that no matter what he does, you just don’t care.
No matter whom he picks up, you’re not jealous. No matter what he does or says, you’re not jealous.
Show him that you’re not as interested in him as he wants you to be – this will make him go really nuts!