
The teacher seems a little iffy to me. Probably a pedo lol

He was trying to get into her good graces so he could get information about her sister. It is quite common for people to do that. They mean no harm and to be fair, it is the quickest way to get close to the actual person they like. Unfortunately, him buttering her up gave her the wrong impression. (Not exactly helped by her classmate!) So he isn't a pedo. Just a shy guy who wants to get to know a beautiful woman he saw with one of his students.

Semi hot teacher: Hey y/n how would you feel if I rounded your grade?
You: (notice he didn't ask anyone else and begin thinking how he is kinda cute and nobody loves you so it might be worth
Senior hot teacher: Say what ill boost it two percent?
You: (thinking how you need that extra percent to pass the class and begin thinking of your future together) well for what?
Semi hot teacher: well I wanted to ask if you could talk to your sis-
You: (you could hear your heart break to pieces and anything he says is just blurr, your imagination of your future with him collapses
You: (saltily) sure whatever
*SOBS IN GIBBERISH