Actually, I think there was only one truly "boy toy" affair, but click-bait is click-bait.
Interesting to note that it is Cubby Broccoli's daughter Barbara who was the prime force in getting the film made.
And this is probably as good a place as any to note that GG's mythology was already in full swing during the 70s, as evidenced by this ad for the TV movie THE GIRL ON THE LATE LATE SHOW (1974), where Don Murray tries to track down the whereabouts of the mysterious, sloe-eyed actress who'd intrigued (and scandalized) so many in what proved to be the waning days of Hollywood's Golden Age:
You can also find an interesting photo from this film--a shot of the principal cast--at the IMDB page for THE GIRL ON THE LATE LATE SHOW. GG is more sloe-eyed than ever as she continues her efforts to defy time; surprisingly, Don Murray looks très Hollywood in his get-up, which seems a bit out of character, particularly for someone who'd just departed Tinseltown for Broadway.