[if it were possible for his expression to be nothing but a giant question mark right now, it would probably be his exact expression.]

That's... a reason to run away? [he pauses, thinking. is there something that important about kisses? what's the big deal? so many questions.]

You got hit by the needle, didn't you? Because... then it's probably like me. You couldn't help it. [logically speaking. though he really still has no idea why this is so upsetting to her.]