One thing I keep reminding myself about is that this isn't about OM. It's about W and I and our family.
Another thing to worry about as well is that if you contact OM or his fiance it may backfire. OM goes crying to W, W (who probably still has feelings for him) comforts him saying what a monster you are etc etc etc.
You'll need to find some way to trust W that she will abide by the NC. Think instead about what can be done by yourself and W "together" to create that trust.
On BD H52, W50 T27, M26 S21, D23 BD-9-Mar-16 D-15-Jan-18 Final-19-Apr-18 I am a storyteller. The story may do you no good. But a story is never for the listener. It is always for the one who tells