In fact that level of bullying is VERY realistic
To be automatically hated by everyone for being nice? Maybe it depends on where you are, because you while bullying does happen, it's usually just teasing where I'm from.
Be grateful you live in such a nice place, not everyone had that chance. One of my friends was bullied throughout all elementary and junior high because she was perceived as more beautiful and nicer than the rest of the girls in her grade. So yeah, it happens.
It was good but:
1. That level of bullying just isn't realistic.
2. Just my personal POV, but if you're gonna be possessive do it all the way. Beat that boy ass.
3. Another POV, but forgiveness shouldn't come so easily. Bad past, but he doesn't deserve anything he hasn't earned.
4. Would have been so sexy if the uke was seme.
And finally:
5: I REALLY THOUGHT THIS UKE WAS YANDERE, I WAS WAITING FOR THOSE EYES TO SHOW ITS REASON FOR LOOKING LIKE THAT