All I know about Nathaniel and Devers is what I read on his discussion group.
Branden posted a few comments about their parting in January, 2003.
It’s interesting that the episode you described was in 1967. That was, of course, well before his break with Ayn Rand. In the seventies, there was a monthly Libertarian Supper Club in Los Angeles. I remember attending a dinner when the presentation was on “The Old and the New Nathaniel Branden.” I don’t recall who the speaker was, but he talked about the drastic changes in Branden’s personality since his break with Rand. The essence of it was that he was considerably more open, more benevolent, and much less judgmental than he had been prior to the break. Branden heard about the talk, then mentioned it when he addressed the club himself a few months later, basically acknowledging that much of it was accurate.
I strongly believe that virtues are more important than flaws. In his “Answer to Ayn Rand,” Branden stated:
“I do not think it inappropriate to mention that all four of the people who denounced us have acknowledged that, in my capacity as psychologist, I have made an incalculable personal contribution to their lives and careers…”I know that he has made a similar contribution to my life. Perhaps it is the degree of ingratitude (not to mention injustice) he has experienced over the years that has convinced him to be wary of compliments and to always follow his deepest feelings--and let others take responsibility for their own feelings. Compared to the value I have gained from him, the bewildering coldness he exhibited on one isolated occasion is nothing more than a pinprick.