Is there a polite way to tell someone “yes, I’m cool with being a friendly acquaintance but quit assuming that I am your best friend now, because you took advantage of me and betrayed my trust and therefore don’t deserve me as a best friend and it’s not my fault that you’re incapable of making friends with decent people without my help and personally, I just don’t want to go there with you because I’m choosy about my close friends for a reason that you don’t seem to grasp,” because if so I need it right about now.