>>149663582It was the early 70s FF by Roy Thomas, before Byrne even worked at Marvel, and when the CCA had enough power that the stories couldn't really even suggest that Johnny and Crystal were sexually active (Johnny was shown sharing a room with Ben instead), or that Crystal had cheated on him. It plays out that Johnny has a girlfriend who lives half way around the world, and he doesn't get to see her very often anymore, and finds out she's leaving him for someone else who's right there with her.
Thomas was coordinating with Englehart on Avengers to write Crystal out of FF and Quicksilver out of Avengers, and retire them both as characters, giving FF writers back the single Johnny they wanted, and giving Avengers writers the opportunity to let Wanda develop and shine without her overprotective brother holding her back.