Finding friends is hard
Believe it or not, making friends is just as difficult as finding a partner. Not everyone can be a friend who really cares or doesn't put on a fake face in your face. Even sometimes, friends who are close to you can become enemies in the blanket who can stab you one day.
He'll be jealous if you get something he can't get. For example, you get a good and loyal lover, while he is still having a hard time getting a girlfriend, so he often badmouths your lover and tries to find faults.
A fake friend will always try to find fault with you and prove that he is right. He just wants to make you feel guilty and down.
A fake friend will always try to show that he has a bigger ego. He even very rarely be humble to you, because he does not want to lose competitiveness with you.
When you need his help, he always evades or even just disappears. This is a sign that he is not really your friend. So, never expect more from this kind of friend.