Not too long ago this whole drama happened between my two best friends. They went out for a short time, then broke up since they were totally incompatible. As in, it really could never work between them. The guy just kind of shook it off and went back to life, but the girl ended up spending most of the time complaining to me about how the guy was being totally unreasonable, and if I disagreed she would freak out. Then she'd try going out with someone else, say how happy she was to be over the old guy, then break up with the new guy because she still loves the old guy, realize he doesn't give a shit and that's why they broke up, and come back whining to me. Cycle repeats. I might have been fine with this, except that despite how hopeless she was I really liked her at the time. And she would flirt with me all the time. I just sort of went with it even though I knew the next day there would be absolutely no mention of it. We drifted apart after a while, and it was better between us for a short time. Then she kept saying how we never talked anymore, even though every time we talked it led back to the same cycle. Eventually I absolutely flipped my shit on her.
Also, on a less depressing note, I happen to be the target of that guy who thinks everyone loves him and he's hilarious and friends with everyone, except I know three of him and they all suck to varying degrees. One is pretty funny usually but never knows when to shut the hell up. The second one can tell a funny joke once in a while, and he's a pretty nice guy overall, but he's also that guy who quotes family guy and doesn't stop talking about dragon force. The third one is a racist, verbally agressive compulsive lying attention whore who's obsessed with cross-country skiing.