While I dont dislike her, if she was sleeping around behind this dudes back with a number of guys, thats pretty legit a shit thing to do. Go to off topic and see any relationship advice thread and how quickly people get wound up and call people out for it. No one likes a cheater or being cheated on.
The whole lynch mob thing with death threats etc are totally uncalled for, but she is kind of in the spotlight as a blogger and personality in the industry so she is always going to be something of a target for the internet hate machine which usually doesnt require people to have any real reason to go off on a tirade. Obviously that sort of shit is totally unwarranted, but as mentioned, I also believe cheating is one of the lowest acts out there; its embarassing and demoralising for the person on the receiving end. Enough to justify death threats etc, no, but like I said, give some morons some sort of deluded sense or moral high road and the pitch forks come out.
Like I said,,I am not defending the idea of anyone sending death threats etc, but she isnt the first and wont be the last to cop a flogging from the wrong end of the internets anonymous douche bags and if those assholes feel they are even remotely vindicated in what they are doing, its a shit fight for all. Hell look at the shit a 13yr old school girl Rebecca Black copped for having the audacity to put out an innocent pop song. Being anonymous turns people into complete cunts with little to no morality.