Arso, sorry I didn’t explain myself better (wasn’t sure if necessary) I didn’t mean a friend with a spouse the way you’re describing. I meant it in a visceral sense- if you have an interaction with your spouse that goes wrong, what was your part in it.
And to analyze this it’s better with a spouse because, once you know each other, they won’t get put off as easily by external things.
But the way I’m seeing Rashi is that if you approach an interaction with yeshus- it won’t end as well. And if you want to improve, you can easily see it there in those interactions