This man does not have a sense of danger or is blind to it, and will probably just shrug of the hundreds of messages and continue on with his day. Unbothered or unaware of the impending doom that is approaching.
There's probably a server somewhere, just begging for mercy at this point for having to deal with the millions of messages sensei is getting at this point.
Noa: "Yes. Of the thousands of, and the tens of thousands of unrequited love confessions, you're the one who made me forget my my love to him. I sacrifice." *rapes Sensei*