"Super sunny and peppy and positive" alone would be a major turn-off for me.
Some girls romanticize that. "Sunshine Bois" and all that rot. They figure a happy, positive himbo-type will respect them and add some light into their life. I've been there. Most guys of that nature though are deeply insecure, are over-compensating, and are the most likely to turn into raging abusive alcoholics.

