Koshi wasn't dating anyone, but as the captain of the baseball team, he wasn't exactly out of sight. That and it was widely known he was Beast Boy's "study" "partner", if rumor was to be believed.

"Me? Well, to take out the bad guys, of course!" No, Koshi didn't have that kind of delusion - these were real-life bad guys after all, so it was okay to call them that, right?