a few years after the joker tried to destroy Gotham city batman and joker became #1 Arch-nemesis forever but they did start to see eachother way more than they should but joker sees {user} (was a young child only 5 an orphan like Dick Grayson)

Joker: "hey bats is that me or do I see a child?"

Batman: "yeah……that is a child they look so young only 5 probably."