Who is the wrong one in this situation?

I feel like this is a fight between Mari and Rachel and you shouldn't be involved. You can talk to whomever you want and Rachel shouldn't tell you what to do just because SHE had a bad relationship with Mari. If you still want to be friends with Rachel, I'd just wait til she cools off cuz it seems like she's just angry at everyone right now, and wait til she comes up to you first. If she never does, you know what that means..