You do not appear to grasp the impact of what some of the behaviours PTSD can inflict. This is not an excuse for some things of course but it likely had more than a little to do with his behaviour
As a woman, I have always thought Lee Marvin to be one of the sexiest men on film.....ever. I loved his movies and enjoyed them for decades. After reading Epstein's well researched and well written book, I now realize that Lee Marvin was much more, he was indeed the leader of the pack in portraying violence on film in a particularly Post War American way. I have thought a great deal about Mr. Epstein's hypothesis which he lays out in his book; that Lee Marvin "invented" (my words, for lack of a better term at the moment) ) the American Cinema of Violence. He was the first, period. The best and the purest, absolutely. More than a few of Hollywood's leading young film actors today want to follow in his style footsteps. This book explains why his appeal and influence rings so true today. If you are a Lee Marvin fan I am sure you will enjoy this fascinating in-depth portrayal. If you are a film fan or historian, you owe it yourself to read this book and have your opinions and views challenged in a way that will change the way you look at Lee Marvin, and American film violence in general.