[Okay, deflated somewhat... But no, that doesn't deter her at all really.]

How about I meet you halfway? I do have the blueprints of the school. Oh and I might not be the best with spellcraft, but I can Envision the vents to be big enough to crawl in comfortably.

And that way we don't have to follow each other into one bathroom. Much more conspicuous even if no one is around to see.