There are few things worse than mistaking an enemy for a friend.

Convince people that you need them, and watch what they do.

If you're with someone, but you're constantly worried about what they think of you, you're with the wrong person.

A disloyal friend is no friend.

A bad friend is is worse than an enemy, an enemy you can see and avoid, but to detect an insincere friend is hard

Be patient; resentment will always reveal itself.