This thread should be titled "do all people cheat"? To ask if all men cheat suggests that it is a problem only seen in men. Women cheat just as bad as men, it's a fact, deal with it.
Not all people cheat, not all men cheat. Men and women in relationships that are not compatible with monogamy will find the missing elements elsewhere. Most of the time it isn't about sex, but about the emotional connection that is missing. The sex is a by product of the connection, although it is usually insanely intense because most of the time the people involved know they are cheating and soak up every little drop of the moment...in every way.
Now of course if the same energy was put into the relationship that is being cheated...the story may be different. But at the same time, to say that it is someones fault in the relationship and not the other is probably the most immature and ignorant statement anyone could make. It takes two, it always takes two. If the relationship is so in trouble and goes so far that there is actual physical cheating, then both are to blame because the signs were there for a very long time that something was wrong. Both parties have a responsibility to call it as such.
And I have to agree with SS...yet again...dammit, I would really like to not agree with her sometime just because. But anyway, you can't decide what facts or which of your opinions should be withheld from someone who in some way is asking for them. Somebody has to tell them.
It's like letting someone run around with their zipper down...show them some mercy and break the news before they go on creating a list of people that saw them screwing up and didn't say anything.
Some people really do continue to screw up just because no one said something to them. Is any of us really in a position to tell who that is?
WLG