I'm in your H situation and like you my wife has been totally honest. You are getting such great advice already. I suppose from a my point of view - men tend to be a bit slow at getting it but once they do they are formidable at doing what needs to be done - well i know i am.
Work on your marriage - say in a years time of working you are at a brick wall then give up. If the OM is serious then a years waiting for you will be nothing for him.