I should maybe write a true hc about this but
TLDR OG Aphrodite (like just before the Titanomachy) gave Zeus a love blessing (?) but it backfired and now the more (emotionally) intimate the relationship, the more likely it is for Zeus's partner to be driven mad by love.
You don't have to abide by this hc necessarily if you don't want to, though I will say that this doesn't force people to fall in love with Zeus or anything like that. It just magnifies what already exists.







