Simon's default state is to be gently on the defensive, particularly when he feels like he's doing something weird or questionable and particularly when the person he's talking to is kind of really cute. Not that it matters, he just wants to be liked.

"Why would you feel like you don't fit any of them?" He widens his eyes a little, concern in his expression. He moves to stand, pushing himself up from the windowsill to walk towards her without getting too close and creeping her out with his stupid uniform.

"It isn't silly at all. I think it's very hard, to be taken from everything you know and be expected to make a choice- but I think. If you changed your mind? I don't think they would stop you."