This is actually pretty cute. The seme was always saying 'I love you' to tge uke everytime they have sex, lmao. Anyway, it's not that much of an angsty story (there's attempted rape though, but it's not too heavy to read; the student apologized afterwards). Definitely worth reading.
**I don't promote rape or anything, so please don't misunderstand. It's just that in some yaoi that has rape, they don't apologize so it's pretty nice that he knows what he did wrong.
Koisuru Kyoushi wa Okaeri Kudasai