everyone lives stranger thing au where harringrove are a thing (billy got better and also got therapy okay), but steve and eddie still basically share custody of dustin
the custody thing starts as a joke, and rapidly spirals into dramatic soap-opera levels of roleplaying as a divorced couple, (eddie is the husband and steve is the wife), and they REALLY get into it
billy is initially annoyed as fuck about the whole thing, but upon realising that dustin is even more annoyed, joins in the game as steve's new husband and calls dustin things like sport and pal and claps him on the shoulder
(bonus points if the 'custody exchange' is just one of them driving dustin to DND night, and then they go inside and all hang out normally like they WERENT just yelling at each other in exaggerated italian accents)
