It's a common human experience, to feel close to someone and then suddenly find a chasm of misunderstanding between you. This is something I wrote about it years ago .. I can't even remember the occasion now (which is probably a good thing)
I did not know my joy was gossamer-fragile,
Until the words were said.
Like a rock-plummet through the tissue layers,
My joy was shred.
That, which in me was all alive, upspringing,
Is now stone-dead.
Through that great, gaping wound, the world's pain
And flings me wide
To nuances I did not know of anguish;
Nor place to hide,
Nor citadel of sureness, but a hard grief,
Which sinks inside.
Our inward tears mark channels out before us,
With stinging brine;
While we trudge on to where these bitter waters
Are changed to wine;
In that sure place where love shall knit our meanings,
And you are mine.