I understand why you are angry at Michelle but I wouldn't drag your other friends into it. That is just stooping to Michelle's level. Let them make up their own minds about things? She was ugly at your party, that's the only part that you can know firsthand and is enough to get her on your outs list. But others saying to you what happened before is their point of view, not something you experienced and your telling others what she is saying/doing now is you trying to put your view on others. Don't have any communication with Michelle if you want but the less you "stir" the pot the sooner it will go away I think.