Lou, the truth will out re ow, they will be spotted/bump into someone, who will tell someone else. I fould out who ow was via someone who worked with my Dsis who knew both me and my DH. She had bumped into DH and ow who invited her to join them
, my Dsis was at work telling all and sundry what had happened, that DH had upped and left, this friend then twigged who she was referring to and told her everything she needed to know as she knew OW as well.
Tbh this was 6 weeks after he had left, like you nobody knew where he was, I could contact at his office or mobile, that was it and we had 4dcs! I wish I had your strength at that time and I think, with hindsight, I would have employed the services of a private detective just to find out for sure exactly what was going on. People say what they are doing doesn't matter but when you are left with no answers, no contact etc, it helps with your healing to know facts ie where he is and who he is with.
My DH only told one person what he was doing, who he was with and where he was (a dubious male friend who would support him in his choices
. Your H is probably the same hence not telling his parents who would pull him up on his outrageous behaviour. My dh's were so deeply ashamed at what DH had done, his mum was on the phone to me in tears in the early hours unable to sleep apologising as she felt responsible as he was her son.
I think this relationship will probably be blown out of the water when it is shown the full light of day.
Good luck with the appointment tomorrow, it's good you are taking support.
Take care.