Is Victor Ortiz Mentailly Unstable?

I find him & his behaviour VERY bizzare & unpredictable. While he was getting out boxed, he then did some a little succuess pressuring Mayweather, he then jumps off the floor to blatantly headbutt Floyd in the jaw. Why do this? It was beyond obvious it was on purpose, that could of broke Floyd's jaw. Why do it when you on HBO PPV & in the event of the year & getting a $2 million purse? Then you look back to his fight with Maidana, when it was all out war, then he quits and says he dosent deserve to be taking this punishment. Add to that he seems to make alot of lies up, why didnt he never mention his sister taking care of him & his brother? Then after he had been KO'd by Floyd, he seemed HAPPY & was putting thumbs up to the camera. WTF? Once again very bizzare. And remember when Rios said he sent people round to his house. Discuss.