for now i only read the first couple.
First of all, the bullying. Bullying is never going to be something good and you could never feel proud about. I feel bad knowing that Natsuo never apologize to him, and that he only speak about being in love with him since the start. I also think about how they didn't manage good their relationship at first and caused a lot of problems and end up hurting each other. They were pretty immature even the 2nd time they meet. I wouldn't say I like it or not, but I guess I feel good knowing that they can love each without feeling bad, regretting and having traumas. So at the end I think the relationship change for good and they would only want to make each other happy.
Oh, and about the attempt of rape. I would never forget about that Hiro. You really were disgusting and a piece of shit.
But yeah their relationship at the end is absolutely cute and fantastic.
Renai-rubi no Tadashii Furikata