Quote Charlie: "I hate it when everyone doesn't get along. It makes me feel really bad. I love everyone here. I just want us all to get along. I'm just messin, I like every one of yous honest. That's just the kind of guy I am, I hate it when there's arguments. I just want everyone to be happy. I like everyone in here, there's no one I dont' get on with."
(apologies for some slight paraphrasing).
Compare the words above, as uttered by Charle, with the actions of the guy who:
argues viciously with Freddie, Rodrigo, marcus, Siavash. Plays "jokes" on people when they are clearly NOT in the mood to take his pranks. Bitches about EVERYONE behind their backs. Laughs at people getting upset. Stirs up further arguments between people.
His words do not match his actions. He constantly tells us all how nice he is, yet there is very little about his behaviour in the house that backs this up. Therefore, many people believe (correctly IMHO) that he is one big nasty FAKE.
