I don't know. My best friend, I love him to death, but I am happy that I never dated him, or am currently. Because if I make him mad, he respects me, and doesn't mess anything up, we will argue, and apologize. If his ex or his current girlfriend (normally the same person) makes him mad, he goes and busts her windshield out, kicks in her door, messes something of hers up. It's bad, but he vents like that... He's a completely different person when he's mad, I'm glad I don't have to worry about personally seeing that side.