Nick

A nick is a guy who altough might appear loyal, is a cheater and a back stabber, he will date your friends and not apologise for the friendship his ruined . His nice but to a degree where he lets people take advantage of him. He gravitates towards people that hurt him instead of people who actually appriciate him.

"Hey what happened to that guy you where talking to ?"
" oh he turned out to be a nick so i just made a run for it"