Consider with me:
But they were roommates except instead of lovers is nemeisises nemisesi the plural of nemesis whatever they're mortal enemies
And not in the secret identity way no theyre both fully aware of this. They just.. ignore it.
Imagine Hero getting home after a fight, still in costume, collapsing on the couch, bleeding from an injury.
Villain in civvies quietly grabbing the med kit and patching up the very wound they caused. Not apologizing. Not bringing it up. Just quietly fixing.
Villain gets arrested, uses their one phonecall to call Hero, who just arrested them, to bail them out (they always do).
Villain and Hero falling asleep on the couch together, exhausted, pretending they aren't the cause of the other's bruises.
Is it romantic? Maybe. Maybe not. But they are each other's orbiting star either way.












