If your WW is no longer talking to OM, she's likely fishing for OM2, which explains her contact with the ex bf. That's likely just one of the many contacts she's putting out there.

Your best hope for saving this whole thing is to Plan A from a distance the way that you have been and then do a Plan A when you're nearby.

This may be a situation where she will take years to see she made a mistake, if she ever sees it that way.

Stay safe out there.