Don't worry about this OM stuff. In the alien's mind you aren't married any more, and she's free to do whatever, including male "friendships". And maybe they are just that.
Get real!
I am really sorry about the folks here who are suffering and hurting because of infidelity on the part of their spouse. I personally think it's the worst thing one person could do to the other...short of killing them!
That said, sticking your head in the ground and saying it's dark outside doesn't change the fact that the sun is shining very bright outside!
"Always go straight forward, and if you meet the devil, cut him in two and go between the pieces." - William Sturgis, clipper ship captain, 1830's.