To my knowledge there is only myself, you, and the other you.

[That is to say, he hasn't noticed a third presence identical to his own yet. His attention lies with Asch and whatever task he's engaged in. Polishing counters, drying glasses, and the like is fascinating when you neither eat nor drink. Those wings also earn an inquisitive stare - certainly he didn't always have those?]

I apologize for the intrusion if you're displeased to see me.