I agree with sandi, treat this with WAW in A. fortunately, it's only been couple of months that you found out about the phone call. In my sitch it was a year after the IDLY bomb til I found out my W's EA. The EA by that time was full blown and the cycle keeps repeating itself because my W is so addicted to OM.
I suspect she will go underground with this contact. Are you guys still living together? IMO you need to set some boundaries.
me40; W43 M18; T~20 D18; S13 & S3 bomb 5/9/11 EA busted 4/30/12; 9/4/12; 4/29/13; 6/10/13 same OM
Separated 4/1/14
"Even a flicker of light will shine through darkness-12/25/2012"....better days ahead.