So long ago I use to date my best friend's now fiance . It was a mutual break up between me and the guy (at first it was a heated argument that ended it but we tried again for a little bit but ultimately went over our relationship and felt it was time for it to end) . And we have remained friends. I even set my best friend up with him because I felt they were super compatible. Well they are going to be getting married, and my best friend asked me to be one of her bridesmaids. I was thrilled to hear the news.But according to her it seems as though her mother hates me because of my past relationship with the guy. And his family seems to hate me even though it was a mutual decision and both of us were way happier for it. And then the friends I made through that guy apparently hate me now too? Should I  or should I not go? I want to celebrate their marriage and I am so happy for them, but even though my best friend wants me to be there, I don't want to risk making her special day like filled with a toxic tension.