As my username so wryly suggests, my greatest academic interest lies in psychology and counseling. Does this relate to why I'm surrounded by really crazy people?

The truth is, we all have problems. I have a lot of friends who have come to me with a problem or two, and I am always willing to help. Whether it has to do with relationship issues, friends nmot talking to one another, or what to do about really annoying people, I offer ideas on how to navigate around their issues. I don't have any compunctions about that. But I can't be there 100% of the time. Even the people most willing to help have their thresholds.

I bring this up because of a friend of mine. I enjoy her company immensely, but sometimes it turns into a chore when she starts bringing up problems she has. And there are a lot of problems.

The biggest reason I don't want to get involved in these problems is because the focus is usually on people we know mutually. There's a lot of bad blood between her and pretty much all of my friends, and it tends to surface even though I've told her I can't get involved. I don't want to take sides, and the only way I can do that is wash my hands of those problems. She and her boyfriend are having troubles, and she wants me to intervene and mediate, but I can't do that because they're both close friends of mine. Believe it or not, it's actually more difficult to mediate a conflict between two friends than between two strangers.

She's come to get used to coming to me for advice, and again, I don't mind it. But I can't do it all the time. I'd rather hang out with her than her problems, because I genuinely like her. My question is: Is it possible to say, in a tactful and reasonable way, that I can no longer tolerate hearing about her problems? Is this a moral dilemma, or is it a textbook case of my overthinking a situation?