There are lots of friends out there, the good ones and the bad ones. The bad ones, you should do away with, the good ones, you should keep around. See Signs that your friend is worth keeping:
1. He or she speaks highly of you to others:
A good friend is somebody who is not afraid to tell his other friends about you and glorify you in your absence. This is a good sign of respect.
2. He or she listens to you:
A friend who listens to understand is a good friend. You will always need that listening ear from time to time.
3. He or she respects your personal space:
A real friend knows he or she does not have to hang out with you all the time. There are times when you will just want to be alone, and they always respect that.