After 2 seasons, Claire still hasn't grown as a character (or as an actor). She is still the same young, whiny, incompetent adolescent, because life is hard living in white suburbia with a good body and the awesome ability not to die. Go cut yourself...deeper.
I bet her father hates her. I think he is purposefully trying to drive Claire to suicide. He is back with the company whom she hates, teamed up with the man who mind molested her, and still treats her like immature child because...well, she is. If he keeps pushing it, maybe she'll finally do it right. If at first you don't succeed, try try again.
Of course, they give the weakest character in the whole show the ability not to die. But please, find a way to make her die. She is killing heroes, and it would give Noah Bennett a better motive to do what he does.
Kill the cheerleader, save the show