distant marriage

My husband lives in Taipei and I live in Tainan.  There is a great distance between the two of us in both geography and mind.
He is going to leave for Mainland China early tomorrow morning (Sunday, December 14, 2014).  I called earlier tonight and he was busy having a hot pot with his students.
We've been related for 30 years, however, our son (my only child, but his fourth child) just turned 15 in the past summer.
This marriage and relation has always been a pain in the neck for me.
The older we get, the harder it seems to resolve the problem.
We have learned to leave it alone.
Don't know what to do with it.

With distress, I managed to get my mind off by getting myself preoccupied to finish up the final exam paper.

Thank God, at least I have done something constructively.