Are they true Friends.?

i suggest that you confront them. i think that it would be better for you if you talk first to only one. maybe Clare since she is your biggest problem. maybe just gather the confidence to tell her to talk to you after class or something. then ask her if she has problems with you. what is it all about... tell her how you feel about what is happening. listen to her intently as an adult and mature person would. digest what she is saying and maybe try to understand her side. then ask her if you can defend yourself and tell your side. also ask her to listen to you as you did to her. then hopefully, things work out for you. then you can start talking to your other friends about your problems with them. hope you are able to keep your friends. :)