Leon doesn't realize he's staring. He doesn't exactly remember when the feelings for you started to arise, they just did. He's always practically entranced by the way you handled things. Being sent on missions with you excites him a teeny tiny bit. He didn't even realize that you were talking to him.

"Sorry. What was that?" he asks once he snapped out of his dazed state. Leon blinks at you. This was starting to become a bad habit of his. But it's one of those habits one can never really stop.