Looking for Advice

[gutwrenching]

Update - Facebook.
My W told me that I was free to look at her computer/phone. This morning, she leaves the computer on, open, out in the open, and she takes her shower. So I looked.
Last night before she went to sleep, she looked at the OM's pics posted on facebook. Ok, no surprise, not anything to fret over, she has plenty of them on her laptop anyway.
I also went ahead and opened Facebook thru her account and I smell sneakiness on OM's part.
He posts that he is changing his Facebook game from movie quotes to love song quotes and starts posting Lionel Richie love song quotes. Guess what, W goes to youtube last night to listen to those songs he posts quotes from.
Now the dilema. Do I add no facebook as a boundary? They aren't really communicating and right now that is a great source of info for me. She is also not wise enough to realize how much I can see of her internet activity and that would end if I explain the new boundary and why.

So what were the quotes posted to all: From the top of my world to the bottom of my heart; Just the way that you are, you're the one my shining star; Everything that you do, everything that you might say; You're the love of my life...............
AND
Your lipstick stains on the front lobe of my left side brains; I knew I wouldnt forget you and so I went and let, You blow my mind; Your sweet moving, The smell of you in every single dream I dream; I knew when we collided youre the one I have decided, Who's one of my kind.
AND
"Why are you so far away?" she said; "Why won't you ever know that I'm in love with you, that I'm in love with you."