"I don't think it is reasonable to expect EVERY man to come back crawling on his knees begging forgiveness and trying to prove himself with everything he does...some make a "silent" return..."

I don't think anyone is suggesting this-crawling and begging etc....
I do think the past can be the past but surely the point being is the future and rebuilding, that imo cannot be built if there is no honesty,no transparency about the now and no attempt made to show some regret.
Otherwise what is the point,any day any time they could just walk again-as they often do it seems.
I don't advise a constant rehashing of the past but for my own peace of mind and self worth I would need some reassurance and committment. You can only sweep things under the rug for so long before it creeps to the edge and reappears.
I guess we are all different in what we will tolerate and accept.
Bottom line is what will you accept to just have your h home and how many people you will allow in your marriage.