There it is! Oh, and I fixed that last one for you.
Ok, so you're in a potentially poisonous situation with this chick. Don't show fear--that's the worse thing you can do with a predatory animal. DO NOT TELL HER ANYTHING ELSE and stop dancing on the bus. She will be looking for anything she can use against you. Keep the distance with the mutual friend. Don't even acknowledge his existence because no good can come of it. Eventually your friend will want to use you to drive a wedge between this other girl and male friend. She has probably already told some other folks you are a loose freshman.
This way, anybody interested will be so focused on you that they won't notice her scooting up to him saying "
Oh poor male friend, I've got your back. I TOLD you Chickle was loose. It's all her fault. Now girlfriend hates you and you're all alone, but you still have me." It's too late to run so just play dead. Be aware and if she invites male friend along, excuse yourself to go somewhere lots of other people you know will be. How long until she graduates?