Work trouble

So I'm having issues at work I have some on that went to my boss saying I was spreading horrible rumors about some one when I did get called in to the office she would not tell me the supposed rumor I allegedly started... Now today I hear from a caring coworker that my two ex friends went to the boss about Me showing her something on the phone now the reason why we are no longer friends was a post in here before ... I was in able to make it to her dads wake BC I was in the emergency clinic w ovarian cyst complications I'm fine now but any way as soon as I heard that I went to my union rep and well she was very nasty to me and pretty much told Me to go fuck my self she's on there side so I was wondering if there is a(n) organization I can call and report the company there is nothing but favouritism in the office and the favorites get treated like gods and every one eles gets treated like shit. Please help idk what to do