I've told a few people, parents, sister, best friends, but only those I really felt needed to know or could be a good ear as we all need a good ear.
I'm not sure how many people my W has told, but she has removed her wedding and engagement rings now (took a week or 2), so no doubt others will ask as women notice those things don't they ?
It's very tough and I am doing ok with the remaining positive, making the changes to me as it's sort of enjoyable, but I do now do a lot of thinking during the day and when in bed and all sorts goes through my mind. I try and just get it off my chest, on here or to a good friends ASAP and it takes away some of the pain.
Thankfully, my BF I talk to the most, is really cool and doesn't judge my wife, he is very much for saving it so is very supportive of my DBing sugestions, which helps. What you'll find is, most friends (to and your W to her) will just offer rubbish advice to get D to get over it just to see you happy again. Yes, you might get happy for a bit, but when reality kicks in, you probably won't (else you wouldn't be here and feeling like this).
GL, keep posting. Even when you find no response, keep posting as it gets it out there and people do respond.