Work drama

Hi Brook. I have a question about drama at work. I find that I tend to be at the bad end of terrible rumors and disdain at work a lot. It is a pattern that I can’t seem to figure out. At my current job I confronted a coworker about her bad work ethic, and how her being on Facebook all day was causing everyone else to get her work. She acted okay with it and sopped being a slacker, but then she moved to a private desk and resumed her previous behaviors. She has convinced our manager and the other managers that she is a hard worker since she constantly has overtime on her time sheet. I and the rest of the team who works with her Daily knows that she does a lot of her regular work during this overtime period. We have tried to tell our manager but he seems convinced that she isn’t the issue. She has convinced him that I am turning the others against her and that we are all now ganging up on her. I have tried to stay out of it, telling people when they complain to me that I understand where they are coming from but they need to tell the manager. But this only seems to “prove” her story to the manager. So now I am trying to figure out a model that helps me go to work without letting this get to me, because all I want to do is slap this chick in her face and tell my manager he is an idiot. I have a new job offer so I will be moving on, but I have a bad feeling that this result may happen at my new job if I can’t figure out what I did wrong. As I mentioned before, this isn’t the first time I have run into drama at work. I try to distance myself from people and just keep my head down and work, but this has only made people hate me for other reasons. I hate work drama and I don’t want this pattern to keep going at my new job. What do you suggest is the best way to approach this so that I can finish out my remaining days at work in peace, And so that I don’t have to deal with this at my new job? Thank you for your help and time.