What did i do to her?

i bet Bree back-stabbed you and when you were warming up to her she had the perfect chance to see that Tammy would notice you being Friends with Bree and thought you told her stuff and made a lie about you saying that you would talk about her behind her back or maybe she has someng on like very private or family going on talk to her and everything should be better i mean Wat do you have to lose?