It's the "Toxic Friends Network" Hurry and join today!!
The Self-Centered Person as a Toxic Friend:
Self-centered people can't think of you as they are too busy thinking of themselves. They make toxic friends.
I've had toxic friends before and I won't have them anymore. They are not worth the trouble and drama involved in keeping them as friends.
For other types of toxic friends, you can go to this site:
http://www.cyberparent.com/friendship/toxic-friends-friendship.htm