[He's not going to ditch Aoba over this, especially since it's their night to have fun and catch up. Still, he's just a little surprised. Maybe Aoba thinks Koujaku would overshadow him? Maybe the fear of rejection? He's not sure, but if Aoba doesn't want to, he won't.]

It wouldn't be bothering, as they look like they want to have fun, but if you prefer talking to me instead of pretty girls... I'm flattered.