Mr nice nerd
A man that seems like a laidback nice nerd type but really he is a womanizer, compulsive liar and a jerk. He is always scanning the scene for a new woman to get with even while he's in a relationship. He's even trying to get his female friends only in bed but they don't realize it. If you get in a relationship with him he starts to show his true angry controlling side. When he's sober he makes up lies about his last relationship and acts like he was the victim and plays the nice nerd character.
That man is a Mr nice nerd , I can't believe I didn't realize it sooner. What a jerk he was.