We all have them somewhere.
 That one friend that you don't particularly go out of your way to spend time with, but for some reason you feel compelled to keep them in your life.
 Maybe they did something really nice for you a long time ago, or perhaps they've just been in your life so long that you just can't let them go.
  For the most part, this is not necessarily a bad thing.
 It's probably not being detrimental to you or them so "breaking up" with them would just be painful for both parties.
 However, if you do have a friend that constantly makes you angry, or hurts you then it's really time to take a look at that relationship and decide whether or not it's in your best interest to keep it.
  Look at the relationship and figure out what it is that you're getting out of it.
  If this friend is truly there when you need them, just a bit abrasive sometimes then it might be worth it to keep it.
 What you should do in this case though, is find a good time to bring it to their attention.
 Take a moment when both of your guards are down and bring it up in a non-confrontational kind of way.
 If you say it in an accusatory tone then this may just put them on the defensive and make it impossible to get your point across.
 It may or may not stick, but at least you've gotten your point heard so that if whatever the offense is should happen again, you can call them out on it.
  If you examine the relationship and you find that not only has this person never been there when you needed them or they are constantly talking about themselves regardless of what is going on in your life, you may want to consider walking away.
 Perhaps you find yourself frequently playing the role of the punching bag.
 A fun night out for drinks should not end up with you plotting someone's death in the quiet halls of your mind.
 Nor should it lead to an emergency call to your therapist.
  If you find this to be the norm rather than the exception, it's time to do something about it.
 Try to have a conversation about it.
 If that doesn't work, then make yourself less and less available to them.
 Eventually they'll either realize their selfish behavior, or they'll just stop trying.
    In any relationship, don't forget about you.
 It's great that you want to be that type of friend that all your friends can turn to, but not at significant cost to your own self esteem.
 And remember, no one can use you as their doormat unless you let them.