this ML is someone my petty selfish vindictive self can appreciate.
Just because i grew up poor and economically unstable doesn't mean I WANT or NEED some 'rich' kids pity. He was already getting beat up constantly because of something he couldn't change, then she comes along and rubs salt in the wound. she overstepped her bounds majorly and that made his already bad social situation worse. everybody wants to say "oh she was just a kid" but so was he. the rumor mill in Asian countries is vicious as hell and can legit get someone killed or drive them to suicide. no way she didn't think what she did for him wouldn't be talked about since his name was in everybody's mouth already.
his 'revenge' was very well executed in my opinion. now that HE was doing better than HER he 'repaid her kindness' by bankrolling all her problems and making no secret of it. now she was in a position to know what it felt like for someone to disregard your personal feelings in regards to your situation. now everyone was looking at her like someone desperate for handouts. Obviously she didn't like the feeling either. everyone would look at him like her savior and constantly remind her how much she owed him for something she didn't even ask for. THAT is some high class petty shit and i love it.