So are you saying I should literally tell her "no more dinners, no texting, no phone calls, no happy little conversations, because I will NOT be involved in a relationship any longer with a cheater." Am I supposed to explicitly say this to her, in no uncertain terms?
If so, won't she just run straight to the OM?
When I told her to stop talking to the OM before, she said it was important for her to make that decision herself (instead of being pressured into it).