Is that Jersey Shore skript ?
can you spell it backwards ?
Lock them in a room together and tell them they can't come out until they kiss and make up.
Stay neutral if you can. They really dont have to get along...although it would be nice if you could share your feelings about your boyfriend with her...without any resentment. Good Luck :)
Tell her to grow the **** up and except that you are with him and should support you no matter what. And tell him to grow the **** up and make an effort to get along with your friend. Really they should both grow the **** up. If not ditch the both of them.
Just be calm for sometime , make sure they don't meet for a while , that might help !
Im sure you would have conveyed they both are really important in your life!
Make your best friend understand that he's okay now and how she should forgive him.
Choose a side or you run the risk of losing both of them.