Hi Irish , a couple of things spring to mind , firstly I wondered if the talk of ' couples ' counselling was offered between OM1 and OM2, not that is matters but just a thought. Secondly, i personally wouldn't tell the girls as your family has enough to think about with your Ds results coming up. It seems to be common on here that OM1 is replaced by OM2 and OM3 so i would think keeping quiet about the latest OM may be best.
Just my thoughts on that. 're the other lady trying to friend you on Facebook, i think you choose wisely, not a fan of the whole Facebook thing anyway but thats seems a bit suspicious.
As always , you have handled this situation well so far so be led by your own instincts.