I had no idea WoW was such a hotbed of hooking-upping. Then again, I am old, married, and I steer clear of MMORPGs.

However, I do know all about dating psycho chicks, since I did a lot of that when I was young, right around the Peloponnesian War. Here's the deal with psycho girlfriends:
  • She makes you feel wanted
  • She makes you feel necessary
  • She's wild and kinky in bed
  • She's never boring

That's the good stuff. Now for the bad:
  • She's out of her freakin' mind
  • She will explode at you for reasons you cannot comprehend
  • Her drama will gradually take over your life
  • Keeping up with her mood swings will be energy- and time-consuming

Bottom line: Try to break yourself from the psycho girlfriend habit. It's not easy, I know, but I think some of the posters in this thread have some helpful steps. Not looking for love on WoW sounds like a great idea, for starters. Also, isolating why exactly it is you like bat-guano-crazy girls might be a worthwhile investigation.

Good luck!