I found this poem in a book back in March and just today located that book again. Sorry if this is a repeat for anyone.
One or the other must leave,
One or the other must stay.
One or the other must grieve,
That is forever the way.
That is the vow that was sworn,
Faithful 'til death do us part.
Braving what had to be borne,
Hiding the ache in the heart.
One, howsoever adored,
First must be summoned away.
That is the will of the Lord
One or the other must stay. ~Anonymous
So much truth in this poem.