That's a good one, Andy...

I think if we were to put that into a "words of wisdom" frame:

When we wake up one day and wonder what happened to our spouse; what is this change? We might want to consider that, for the duration of our M, both people change. The stranger in our life isn't the only one who changed.

We might think we are the same people we were when we M, but we aren't. It only is in trauma that we realize how drastic and polar the changes are.

So the question is, how do we change to match our spouse, so long as it keeps with who we want to be?