How do you handle a friendship that you feel is beyond repair?

I was reluctant to join facebook, but after a bunch of coercing from different friends, I did it and ended up reconnecting with a bunch of people from my past – some family, old friends, an ex-boyfriend, classmates, etc.

Anyways, one of the friends that I reconnected with, her and I had a falling out in the past. I live my life to try to always be the bigger person, so I felt it was water under the bridge, enough time had passed that maybe we could start anew.

Well, here we are a year later and a few incidents have occurred that were reminders of why our friendship went sour in the first place. She focuses solely on cultivating more friendships with men, a lot of times she’s in drama-mode (meaning something is always wrong), she jumps from relationship to relationship and only needs you then, when she’s keeps repeating the same cycle over and over. I can’t think of the exact quote, but doing the same thing over and over and expecting a different result, equals insanity, it sort of sums up what she continues to do.

Don’t get me wrong, I take friendship very serious, most of my friends are like extended family to me, so this is why considering putting this friendship to rest is bothering me. Yet, I can’t remain in a one-sided friendship. And, yes, I’ve tried talking to her, but in her world all she wants to deal with are happy situations, happy friends, happy things, and anything that’s negative or not on her terms, she doesn’t want to deal with.

Anyone out there ever have to put to rest a dying or dead friendship, when, 1) you have mutual friends in common that would ask a ton of questions, and, 2) you both still frequent some of the same social circles. What has your experience been in either successfully resurrecting a dead friendship or giving it the final burial?