I'm almost certain that I've accidentally rejected a one in a million literal incarnation of Asuka that somehow ended up sharing classes with me.
We were alone, and as I was focussed on showing her a textbook (and actually intending to ask for her number), she almost certainly literally said "I can just give you my number so that...", which, in my sleep-deprived state I convinced myself to be a different phrase that would have sounded similarly in German, but made little sense, and which I simply ignored.
Instead, I actually simply opened a door for her. It now dawns on me why she unexpectedly hesitated and stood back for a moment, even though we were simply in front of a lecture hall that we were going to, with her friend group in it.
The other possibility is that I'm delusional. I've never actually felt like losing my mind over a woman but I do now.
I'm pretty sure the girl of my dreams has jovially offered me her number, and in response I showed her the door.