As a trekkie from day one, at age 16, I followed/still follow all the stuff about it, because it is an interesting phenom-Majel Barrett was Roddenberry’s wife and Nichelle Nichols (Uhura) was his mistress-both of them wrote about that and discussed it in interviews on TV in later years-they competed constantly for roles and attention from Roddenberry. People didn’t want a female 2nd in command in that day and time, Roddenberry had given Nichols a prominent role in the series-likely to keep her from turning him into burnt toast in the press-so now he had to find another nice role for wifey to keep her from taking his last dime in a divorce-hence, nurse Chappel, who was made even more interesting for her not-so-secret desire to be boffed by Spock. No woke there, just simple female jealousy and a man’s sense of preservation of his finances and livlihood...
Everybody was Gene’s mistress. He was a cus hound. And Majel knew it, and learned to live with. She caught him cheating on her with hotel staff on their honeymoon. Nothing going on with Nichelle would have burnt him. Majel had accepted it.