Gladys Jones left Riverdale for a reason. Whether it was her husband FP or criminal matters, she picked up her life and took her daughter out of town. Those reasons haven't gone away. The past has a way of coming back from the dead.
Sister Woodhouse: The children who come through our doors are broken. It’s our sacred mission to fix them using whatever tools necessary. Betty: Does that mean the Sisters created Gryphons and Gargoyles? As a tool? Sister Woodhouse: Misbehaving children have been brought down to this room since the asylum opened. That statue scared them into submission. Some of them, the more disturbed ones, created a fantasy realm ... a game ... to cope with the fear of the one they named, “The Gargoyle King.” We embraced it as a therapeutic tool and it worked because it embeds itself in the minds of the players. It makes them complacent, focuses them. Betty: If that’s true, then how did the game get out into the world? Did you give it to Hiram? Sister Woodhouse: It was never meant to leave these walls. It’s too powerful. A game born of madness. Ethel: A madness you helped nurture. And now people like Ben and Dilton are dead.
Gladys: Oh, I recognize that rooster top. Archie Andrews! [Gladys hugs Archie] Gladys: Gosh, you sure grew up! [She stares at them and smile] Gladys: Ohhhh! So, you two finally got together, huh? I always knew there was something going on between you. Jughead: Uh, no, we’re not together “together.” We’re just on the road together. Archie: Yeah, like a bromance.