3. A man who openly admits to being selfish.
If he admits to being selfish, just know you won’t be any exception. He’ll chose his best interests and if that’s not you, then you’re unfortunate.
He sure as hell won’t stop that behavior when he’s with you. At the very least though he won’t flirt with anyone else when you are there, but once you leave..he’ll go right back and do his thing. And flirting can easily lead to cheating.