My wife was not my partner
When I was kid, before I learned about marriage, previously I learned about family, which father, mother, and children are family who related to each other, love each other. That's why I could maintain my marriage from 1994 until my beloved wife passed away in 2013. For me, my wife was my family member, not my partner. If I regard her as my partner, I would thinking like many other people which they have principle "If I still matched with my partner, continue. If doesn't matched anymore, breakup".