[Katsuki gives it a few minutes. He knows Izuku wasn't going to be happy to be getting that text, but he didn't really expect him to take much longer than an hour to reply.
So it's after that hour mark, about an hour and a half later, that he sends another text.]
no subject
So it's after that hour mark, about an hour and a half later, that he sends another text.]
Izuku.