Hi I’m very sorry your in this situation.
Would he consider couples councilng or similar?
I’ve recently had the same thing from my wife and the pain is immense I’ve been struggling to sleep, eat and generally function but I’ve joined a gym which is helping and I’ve been seeing a councilor to talk things through, sadly on my own as my wife says there is no point we are done.
I’m doing the above to keep my head straight as possible for my children who I love very much.
Do you have any local friends and family to lean on at all ?
Try looking for a local gingerbread group also.
You are not alone and don’t ever suffer in silence if you would like to message me feel free.