Getting harassed by coworkers.?

I love my job. I simply hate the girls I work with. I give 150% every time I punch the clock. All of my patients love me and look forward to me working on their unit. Even my supervisor gets in on the hating. I know I'm not doing anything wrong....otherwise I would be unemployed by now. The one I'm supposed to go to for this type of thing is taking part in it. I don't know what to do.