@xieshu I understand that suicide can be seen as selfish, but I agree with
@pokefairy. Bullying can seem light, and it can indeed be light. But if it was the sort that was able to push her to commit suicide, it definitely has to be on the heavier end. the feeling of seeking help and not getting it (from her teachers), the betrayal of someone she trusted as a friend, and the bullying that must have been continuing throughout all that; I'm lucky enough to have not been bullied in school, so I'm not, and can't speak from experience. But like pokefairy, I'm inclined to empathise with her. As you pointed out, she does regret it, as suicide is usually done in a situation where your better judgement is clouded. Not everyone has a strong enough heart/spirit to simply endure it. She had tried other options, but to no avail. At least she sees the good; while it's not mentioned I hope the boy also had good friends despite his family situation. In both their situations, it was unfortunate and as the boy said - they both had it hard. The boy looked like he could have survived it mentally, but unfortunately not physically; the girl probably would have made it physically, but her broken spirit led her to extreme means and the same result as the boy.
Even if one form of suffering is clearly harsher than the other, you can't discredit or discount the other form of suffering one has been through.
Also just wanted to mention how she could still bring herself to wish him happiness in his was-to-be-normal life, didn't want him to sacrifice himself for her, that she would have returned his lot back to him without malice. Of course the bigger person was the boy, as he was the one voluntarily taking a harsh life once again. Yet you have to acknowledge that she wholeheartedly tried to stop him from doing that.
You don't have to agree with my opinion, but I hope you can see where I'm coming from.
If you meant to let it rest, I apologise for bringing this back up.
Hope you have a good day, and that you'll be one of the elder generation in the path to get the lottery to your next life.