The rise
Charlie came into the house like the twins, at an advantage, the twins had each other, Charlie had her snobby middle classed Mother. Charlie, more than the twins used the safety of "Mum" at every opportunity. Charlie coasted in the house for weeks, as none of the HM's wanted to go against her, her mother or God forbid Dan. Charlie realised two things very quickly, Callum fancied the pants off her, and Charlie found herself attracted to Daley, hell even Ma' Travers liked Daley. The spanner in the works came in the form of Hazel, Daley fancied her not Charlie. I believe it was at this point Charlie's resentment of Hazel grew, remember Charlie made a point of asserting, that Daley was definately her type, but as he had a girlfriend, she wouldn't go there, I believe that to be true. Also remember the wierd questioning Charlie did to Hazel, surrounding Hazel's former boyfriend who committed suicide? That was very cold of Charlie, and I can't think of another person on the planet who would go there, or be so insensitive but Charlie's usual "Oh I'm sorry I didn't think"routine didn't wash with me, it was nasty plain and simple. I think the thing that irked Charlie, was Hazel's ruthless attitude in terms of getting a bit of Daley. Charlie soon switched her attention to Callum, she didn't fancy him one bit, but loved the attention he gave her, whilst loving her mother's dissaproval of Callum. Charlie was on a roll, she had air time, she had Callum eating out of her hand, and now Dexter seemed to want her too(He didn't, he just wanted to wind up Callum)
Ok, back to Hazel, Charlie really couldn't stand her but unlike Gina, Charlie decided t become Hazel's "Frenemy" but this was a bad move, as Cucumbergate was to prove.
The fall
When Charlie and Hazel had that spat over the rough useage of a cucumber, during horseplay, the first thing Charlie threw at Hazel was Daley! This threw Hazel, as she must have been thinking why has she gone there? That was enough for Hazel, she knew Charlie was a false friend. Hazel rarely goes after someone she dislikes on her own, the more people she has on side, the better, she has a pack mentality, so last night after the noms bomb-Hazel knew this was her moment to deflect and make Charlie look as bad as possible, and it worked. People think the real enemies in the house were Gina and Hazel, but in fact the real resentment that Charlie and Hazel had for each other, had been simmering for weeks.