Multiple hookers and affairs is indicative or an underlying character flaw, not a one-of stupid action.
Your kids are old enough to know what your husband has been up to. They, and the folks that provide you the greatest love and support for you and your marriage need to know what is going on in your relationship. That is called exposure.
Until you have publicly exposed your husband's behavior, it is unlikely to stop, and you are unlikely to fix it by making changes in yourself.
He continues to do what he is doing because he is getting away with it. Whether you realize it or not, by keeping his secrets, you are enabling his behavior. This is true for drunks, addicts and affairs.
All the best, -NOPkins-
I will ferret out an affair at any opportunity.
-An affair is the embodiment of entitlement, fueled by resentment and lack of respect. -An infidel will remain unreachable so long as their sense of entitlement exceeds their ability to reason.
