I can say as a LDW, it would totally depend on the mood of the moment! If I was in a giving/receiving mood, I'd be shocked at first that you choose to 'air our dirty laundry in public', but I would keep reading.
If she is in a P***y mood, you might get the response " How dare you?!?! ", but it will totally come out of her embarassment/sadness over the situation.
I think at first she would be surprised with your feelings, but would soon either feel embarassed about hers, or feel extremely sad that she is so responsible for yours. I tried to put myself in her shoes, and I think I'd probably cry if my H was feeling so desperate/p***ed off/sad... Sad thing is, my H is probably feeling the same way, just hasn't posted here...that I know!
I'm not sure I would approach her with the URL, but I wouldn't worry that she will find it. If she does, it will be the truth, and she needs to know it. If I had never come on this site, I wouldn't even know there was a problem, because H had just pulled away emotionally, he didn't complain any more.