I've said this loads of times on here but Tony has not become weird because of CTE or whatever BS reasons. He has always been like this from the start, because I watched the entire TUF 13 season, that was actually the last TUF that I bothered to watch because I wanted to see the Brock vs JDS fight, which sadly never even happened.. But anyways Tony is a violent alcoholic and very paranoid, everyone was walking on egg shells around him in the TUF house, he was very unpredictable.
Anyone who watched TUF 13 will know exactly what I am talking about. I always enjoyed his fights because he was entertaining and always let go and was always in fun fights, he was fun to watch, but as a person... yeah I imagine he is very difficult to get on with.
When he was arrested because he claimed someone had implanted a computer chip into his leg, everyone forgot about it and moved on the next day, but I found it very worrying because he is clearly a very paranoid person and believes it.