I don't think that is a breach of friendship, but that is my opinion. Between dissociation and forgetfulness, if people got angry at me for every time I forgot something, I'd be without anyone. It's just my opinion but I think stuff happens. I'm all for giving someone a break because I know for me, I am going to need someone to do the same for me...often. I'm sorry it hurt your feelings. Personally, I don't think she did it to be mean.