You don't, Todoroki. [He hates that his own ridiculousness is giving Todoroki the wrong impression.

He stares down at the floor, steeling himself for being at least somewhat honest about this. Izuku keeps his voice barely loud enough for Todoroki alone to hear.] It's just embarrassing--I might be a little too happy that I get to spend so much extra time with you because of the pretend dating...that's all.