One psycho girl who doesn't get the picture that you don't want to hang out with her and you don't want to spend time with her. Becomes a problem when you have a new girlfriend and constantly tries to be a caddy bitch and to get involved when the guy loves his new girlfriend more than he loved his "obsessed ex girlfriend".
O.E.G: oh my god i cry every day i'm an obsessed ex girlfriend and i can't live without you
Guy: I'm with my new girlfriend and i love her.
O.E.G: but i'm in love with you please come back to me
Guy: no i don't think we'll ever work out again, i love my new girlfriend.
O.E.G: please i'll buy you an M3 BMW!!