There are so many types of betrayal and many different types of marriage.
It's madness to say all women should LTB instantly.
Maybe if you are 17, but couples with years behind them and children, there is a lot to weigh up.
Each marriage has a different rulebook and that rulebook can also change over time. When I think of men and one night stands I think of immaturity and peer pressure, along with the exitement.
Many women who forgive ONS 's can usually see it as not intentional, not pre planned, something they too if having one too many could find themselves in that possition.
The younger you are, the more the probability goes up in this scenario, whereas a 57 year old having a ONS would be more unnaceptable.
The rulebook changes.
Affairs are the real killers in my opnion, whether emotional or physical, the longevity of it with one other person is soul destroying, you have lost your protector, your friend and lover all in one go.
So very difficult to get past this, but people do, some live in harmony and re-kick their friendship, maybe the sex gets put on hold, others live in a strange twilight world of detesting and continually punishing the betrayer.
I think all you can do is apply your own rulebook, don't be ashamed if you wish to carry on.
Be as strong as you can be in the decision you make, yes it is biased on this forum, but there is exceptional advice, what you take from it is key.
I do think women should not be shamed for whatever decision they make and it is a shame that women feel scared to post about advice on staying with someone.
Hell I don't know if some woman's husband has had 27 affairs yet has got 27 dependants who needs the guys money.
We shouldn't judge the support that is needed, although I am guilty of judging some people who are not sorry for hurting others.
Otherwise no I won't condem someone for staying, sometimes the stayers are treated worse than the ow on this forum.