Wh-What the hell, Senpai!?

Doesn't get it ->

Hey, you know we're going to be late if we don't hurry to work?

Ah, you're right!

If you didn't think it was worth your time to get rid of her misunderstanding, couldn't you have just kept quiet so you didn't embarrass me too?

Senpai.

What?

Wait, do you seriously think you are going to make it on time with that slow walking speed of yours!?

Is the reason you said her narcissistic theory was right because you wanted to hide your own mistake?

Mmm, that's right.