I don’t know all of what happened but I kinda relate to this. my best ‘friend’ (and one of the few) at my school replaced me like 2 weeks ago. for a bit it seemed like she was trying to make a big deal out of her friendship with my ‘replacement’ but I’m not sure. she acts like we still good friends, but we’ve barely talked. it’s confusing whether I’m distant or her (there was also drama that happened at the same time she replaced me which complicates it further)