You KNOW now that this is a SERIOUS affair if she's calling HIM after discussig divorce with you... and 30 mins is a LONG chit chat.. She's taking advice from HIM on how to proceed most likley.. I woudl like to know what was said..., But you can likley guess....
Does she have her own car to drive? You can put a prepaid phone in it with GPS, or an auto recording device to pick up her phone calls when she calls him from her car... you will only get to record her half of the convo, but it does help
Re OM : Is there anyone in circle of friends or family that you can turn to for additional support... I would like to see HER parents confront OM themsselves AND you and some other famly of yours meet wtih him for a chat as well... even some friends of both you and him maybe..
THe more people you get involved to expose to the better... you want to paint him out as a meddling manipulator who is messing with yoru wife's head at a very critical time...
He's a predator and he should be xposed as one to anyone who will be offended by him and apply some pressure to tell him to get lost and stop meddling..