Duane's Depressed

Description for DUANE'S DEPRESSED by Larry McMurtry:

Surrounded by his children, all of whom are going through tumultuous transitional times; his promiscuous wife, Karla, who is with her own demons; and his friend Sonny, who seems to be dying, Duane can't make sense of his life anymore. The stark realization that he has spent his whole life in a miserable dust-bowl town throws him into a protracted end-of-life crisis -- one that will hurtle him toward unexpected love, profoundly affect old friends, and cause him to embark on outlandish new beginning.

This is #3 in Duane Moore Series.