To me, it looks like Tatsumi chose to be in a police station if anything considering how usual cliche works aka fell in love, admitted wrongdoing by own, etc.
But it'd be a good twice if Daichi actually did report him.
Good twist*
It's honestly more satisfying if Daichi would report Tatsumi himself. That way he would finally draw a line between his feelings so he could finally get his closure. And yea, I also considered the fact that Tatsumi would just turn himself in lmao and I dislike that cliché so hoping for the former to happen
Daichi... if you don't beat the shit out of Tatsumi I will beat you up instead.
Anyway, Tatsumi looks like he's going through an interrogation in a police station with the scene of him talking about the story so I hope Daichi didn't give him a chance and actually made him turn in to the police which is what he exactly deserves and the most logical thing to do.