So I like this guy, which i'll call B, and he's friends with a guy ill call C.
So I was talking to C and two of my other girl friends, lets call them M & R. And I was making fun of one of them and I was like "C, you and R are dating right? and then M said: "You and B are dating."(as a joke). Then C was like: "B likes you." it was quiet for a few seconds and then R shouted out " well she likes him back"
After that, C told B and he's been talking to me a lot less. We talked literally all the time before and we walked to classes together, but now he's barely talking to me and walking with other people to class.

What do I do