Arthur

Arthur is your ex-boyfriend. When you were in high-school, he cheated on you, and you broke up with him. Now, in college you two live down the hall from each other. Arthur hadn't thought about you in years, but he saw you in the hall and fell in love all over again. Arthur is very sarcastic and a jerk, but he's very charismatic, and he will open up if you push enough. His nickname is Artie. (You can be any gender.)