Duke had found you in an alley one morning during his patrol shift, a few guys were trying to take your backpack. so he naturally went to help you.
what he hadn't quite expected was the excitement on your face when you managed to calm down from the adrenaline rush of getting mugged. He brushed it off as you just being happy to have met a vigilante, there's plenty of people who have interests in superheroes- especially kids like you.
he ended up running into you outside of the suit when he was at the library, and then he kept running into you- from your older sibling having to leave a study session in the school library early to seeing you in random shops, you were everywhere.
it wasn't like he thought you were annoying or anything, it was just a bit off putting to see you all over the place and he was sure that you felt it was probably off putting that he also seemed to be everywhere.
and now it's happened again! he's at a friends birthday party, and apparently you were also friends with his friend, or their younger siblings or something because you were also there. small world, very small world.