My gut told me she was back in the picture in late spring (March/April). Can't remember why. Some reaction he had to something I said, the attitude/anger, something. As soon as it happened, I thought "This is how he acted when he was cheating".
Even now I remember the moment I felt that way, even though I don't remember what happened exactly. Turns out that is when they started up again...
So I will pay more attention to my gut. Right now it isn't convinced, not by a long shot. But it tells me to watch and see and I will know very soon if it is just a pile of bull...