After listening to both those calls, unless I see some pictures of this girl and she looks like she's been beat to hell, I'm not buying it. Sounds like they got in an argument, girl went nuts, whoever was there while Hardy was on the phone with 911 tries to restrain her, not unreasonable. Girl that keeps interrupting the second call... well, not even the guy who called 911 buys what she is saying.
However, Hardy made the decision to surround himself with people like this. If she's doing coke I'm sure he was well aware of it. None of this looks good for Hardy, but I don't think he beat the crap out of the girl.