I've seen so many 'disaster stories' (10-20) in person and only one success story.
No need to read any more to know 'disaster' is the norm.
On two separate occasions,
American guy in a bar comes over to me and boasts how his wife is different, faithful, loyal, loving ..... I'd banged her the night before, at the time she was pointing to her phone behind his back.
French guy in a different bar crying into his beer, blubbing about his wife sleeping with other men all the time, showed me her photo ...... yep, I'd had her too.
I felt bad for both those guys.