My W had that slip in October. I found out from checking phone records that she called him a couple times after finding out he lost his job and his grandmother was in hospital. Our BD was 6 months before that in May. (We separated for a month then started piecing).
OM wife found out about a month ago. She texted me about it. (We are all mutual friends). It caused some major tension. Previous link here if you're interested;
So to answer your question, no I don't think they are in contact. OM and his W are working on things and I'm sure she's on high alert. I have access to W email and cell phone.
After everything we've been through I don't see how she could still be talking to him and act the way she does around me. She doesn't come across as guilty or cold.
Saying that, I've been fooled before so who knows.
M-38 W-32 D7, S4 M-10 BD-May '12 S for 1 month-June '12 Reconcile, Piecing
