Ah, Christ. This really wasn't how she'd intended for this conversation to go at all. Still, what he says makes her raise an eyebrow. It sounds kind of familiar, and honestly, after all her time spent on Sacrosanct, not much of this shit surprises her anymore.

"Look, I didn't mean to spook you, all right?" She's trying to sound about as gentle as she can, nonthreatening, but she knows Marco's a suspicious kid. She winces a little, wrinkling her nose. "I'm sorry, kiddo, but just calm down a second. I'm not looking to hurt you, it just caught me by surprise."

She hesitates, just long enough to draw a breath, and she gives him a sort of rueful half-smile. "It's possible you're from a different timeline than the other Marco I met. Hell, everybody from my world knows me as a guy back home. Stranger things have happened." Yeah, that's still weird to think about. Weirder still that she's met the dude version of herself. "Look, you can't deny that this shit's already weird. We got pulled here from other universes -- not even for the first time, for me -- and we still don't know why. You're a smart kid, Marco. Stop and think about it. Is it really that impossible that I might've met an older you somewhere else, maybe somebody from another timeline?"

She's convinced that's it, now. The longer she talks to him, the more certain she is. There are too many similarities for it to be a coincidence -- and given what she's seen, the alternate timeline theory is pretty fucking likely.