HeyLady!
Sorry about your situation but just hang in there. He is in the "This is all her doing, I'm innocent, so don't blame me", mode. His primary goal is to absolve himself of all blame. He does this by telling everyone about you. His screwed moral compass apart ,you need to steel yourself and let him know you don't give a damn. Please stop being upset. Rather, prepare for a lot of flak from all around. Grit your teeth, grin and bear it . Once they see your resolve, their finger pointing will morph into ," how could you " looks and, finally, a resigned " ignore her completely", phase will set in.
Get on with what you really want to do. You set the ball rolling away from the cult you wanted to leave. Now follow the ball and don't look back. Jellyspine will try to hold the " You let me down terribly", card over you . Don't let him. Let him know what a lowlife invertebrate he is. Balaamsass2 has given you the other angle.