I work as a prostitute (I hope that my posting on your thread doesn't offend you OP). Thought I'd give a perspective on this.
I can understand the posters saying that all men who visit prostitutes are disgusting and vile and manipulative knowingly paying the women and gay males at times too , when they know most of us don't have the choice for whatever reason or another.
At least a good 60% of the clients of me and most women I know - men both single and attached - are horrible and manipulative creatures with zero respect for women and huge egos - a minority are even dangerous, stalkers and violent towards us to the point of rape.
It's not a pleasant industry but unfortunately the world isn't all rose tinted specs and people fall through the cracks.
The other 40% or so of clients are the ok married type. Working girls don't like servicing them since we don't really want to be there we need/want the money, but they are the least-unpleasant put it that way. They are usually after a quick release without the emotional ties of an affair and damage to their marriage. They are polite, respectful of our boundaries (yes prostitutes have boundaries lol what we will and won't do regards to services and so on), and easy to deal with. Not as scary as some of the other types can be.
The reason those types resonated with me when I read this thread on here, was that I genuinely don't believe these guys realise that what they are doing is damaging for most of the women they pay. This is BECAUSE - and I'll be blunt with you here - the industry puts on a shiny and happy veneer - think "Belle du Jour" et al and the working girls obviously we need to put on an act that we are ok and happy with what we do in our work , because well if we didn't we would lose money that we NEED. In most cases need to make ends meet.
If a husband is a decent man in every other way - non abusive, works hard for the family, does his share of household and family duties, is a good spouse and father generally, he is probably one of the types above and not the sinister type.
It's still cheating - the same as an affair is cheating - and obviously it's wrong to deceive one's partner, however it's not as sinister as the actual real woman-haters out there who we have to deal with on a regular basis sadly.
There are a subset of men who use prostitutes who are genuinely unaware of what it really means - they have bought into the belle du jour and they are the "as long as she's independent and not trafficked she's just doing it for a bit of easy money no harm done" brigade.
I'd wager a guess having met literally thousands and thousands of these men (obviously!) that they are weak and spineless men sometimes, and always misguided. But not evil or sinister or perverted.
I'm so sorry to all of you on this thread going though or having gone through in the past finding out your SO was unfaithful and deceitful. I know how you feel I've had the same happen to me prior to this work and I understand how horrible it is. Hope you can figure out a way to happiness either with or without your spouses whichever is best for you.