Along with other on this forum I know what it's like to be cheated on, sold down the river by your soul mate.It happened to me 5yrs into a 25yr marriage, you cant tell me I walked out on my kids!
I was weak, didnt have the strength to walk, I found that strength 20yrs down the line. That is the sad fact
I was lucky to get away in the end, many others never find that strength and use excuses to stay. Your wife/husband can do nothing worse to you.
That ' kick in the gut' feeling will remain even after 20yrs as it did with me.
knowing what I know now (age and wisdom) I'd walk for sure