A few years ago, I moved in with my cousin who had been my best friend my entire life. She is two years older than me. Long story short, our relationship ended due to a combination of her speaking poorly of me in our home and to her friends (who are also my friends). I cut ties with her because I was (and still am) damaged by the entire situation. My fiance proposed back in December and I'm getting married on October 9th. I intentionally did not invite her or my aunt (who also participated in non-family-like behavior), because she never apologized for manipulating me and the way she treated me. At a family reunion recently, she and my aunt cornered my mom and wanted to know why they didn't get an inv. Mom didn't really give them answers, but my cousin reached out attempting to bury the hatchet. My mom was originally supportive of me, but now she is saying "family is family". I don't know what to do. I don't feel like my cousin/aunt really care about me or my future, but I'm conflicted.