#5 The whiner. This kind of a bad girlfriend always whines. She complains and never has anything positive to add to the conversation. She talks about how bad her work is, how sad her life is, and how depressed she always is. If your girlfriend can’t ever just see the bright or happy side of anything, she’s probably too negative. And her negativity will rub off on you and you’d feel drained and tired each time you meet her.