Well, as a WS, I can totally answer this question.
No contact means, no contact.
No social media, no twitter, instagram, snapchat, facebook. No chance to see any pictures, or to follow up on what they are doing. In fact, BLOCK them so they cannot see anything you can do.
You don't need to know anything. That means, no friends, no checking up to "see" how they are doing. Who cares, anyway. If you were not friends with your AP's friends before all this nonsense, GET RID OF THEM. BLOCK them too, so they can't keep your AP on tabs with what you are doing.
You've blocked their number, so they cannot call or text you. You've told them that you are no longer interested in them, and whatever happened in the past will stay there. They were the biggest, stupidest mistake you EVER made as a human being. Period.
In essence, think on it this way...
Your AP is now like the grocery clerk at the store who is bagging your groceries. You don't really know anything about them, and that's about it. When you leave the store, chances are very good that you don't have a second thought about them.
If, Gods above forbid, you ever meet up with them by accident, they are to be treated EXACTLY like that grocery store clerk. Maybe a smile, a nod. Good day. THAT'S IT.
Your marriage is at stake. You could say your life is at stake.
The fantasy is over. IF you think that you can handle it, YOU CAN'T.
I didn't completely come out of the fog until I went truly NO CONTACT. I didn't start healing until I got real with myself and admitted that lying to myself was doing me more harm than good.
I hope I helped out a bit with my thoughts.