I know someone who is all three of these in one. Was this amazing, charming friend I met through work who I quickly learned is a fucking nightmare of a person.

Thankfully, I moved out of the town she lives in, so she no longer asks me for the constant favors, but I do occasionally get texts and calls about her failed relationships, which to a tee, fell apart because she made unreasonable and ridiculous demands and/or complaints towards the dudes she was dating (most of whom she fell head over heels in love with in the matter of a few days.) Her charm and good looks get her a revolving gaggle of friends but the friendships are all superficial because it only takes so long before she berates everyone around her for things that aren't even their fault.

I kinda feel sorry for her because she so desperately wants a real connection with someone, but will never have it because she pushes everyone around her away. But then I remember all the times she lashed out at me or treated me like shit because she was in a bad mood or whatever and can't really muster up the energy to be sympathetic anymore.