Why does he flirt more in front of his friends?

Anonymous
I'm pretty sure this guy likes me! But for some reason I've noticed that he flirts with me more and more sexually in front of his guy friend that also likes me! Now this guy has a girlfriend and his friend does not. But everytime his friend try's to flirt with me he gets defensive and tells him he better watch it! I don't get it! If he has a girlfriend why does he care if his friend flirts/likes me?
Why does he flirt more in front of his friends?
4 Opinion