[He didn't mind that his own gift wasn't heart-shaped. It only cemented Izuku's own thoughts that Katsuki hadn't made those chocolates for any one person. Although he's still wondering, ultimately, if he and Shoto were right about their cross-examination of Katsuki's actions... It's still a very Katsuki thing to do. If he did like someone, would he really make hearts even then? Probably not.

That's why Izuku is going to try and keep going. Taking the heart shaped mold and turning to join Katsuki at the counter with it.]

They are fitting... Ah, at this rate, Kacchan, you'd be able to start your own bakery or candy store, ne? You're getting a lot of practice with this.

[A small joke, with a small playful tone in Izuku's voice.]