Is that so... [cassius contemplates on that one for a second.]

But if that explains your sense of familiarity with me, when what would explain mine with you? [he's not expecting an immediate response, when they've established that this entire place is illogical. though cassius does tilt his head to examine the person in front of him, then looks around at their surroundings.

and then back again at his companion, parsing his manner, his attire, his overall features. nothing strikes him as familiar... and thus the illogical feeling and his confusion over it continues.]

Perhaps my memory has been tampered with, and I have not realized.