C'mon, Marc's not attacking him! He's just-- trying to figure out what the hell is going on and how. "Yeah, well... it's not that weird, talking to yourself in the mirror, is it?"

Maybe not normal, but who hasn't given themselves a stern comment or two, looking in the mirror?

He shifts his weight a bit, looks between Erik and Steven. "He's not helpless. You just said it yourselves, no reflections in the mirror. Anyone'd freak out."

Although maybe not so much about seeing other faces in there, not for them. Still, he can't help but feel a little like sticking up for Steven, just a tiny bit. Baby bird...