[Always *]

We all have THAT friend. The one who, if you talk about him/her you start wondering "jeez, I have so few good things to say about this person, what am I doing around them?" and you even have friends being like "yeah, its' time to cut this person off" etc.... And I don't mean over minor disputes, I mean over their fundamental personality traits or behaviour that directly affect you repeatedly and are traits that aren't likely to change even if you confronted them. But despite knowing this you continue seeing this friend because there is still something decent about them... Even though it goes far enough that this friend is embarassing to have around other friends because of their attitude etc... So what do you guys do here?