This is painful to read, but I'm not that surprised; when you have a culture that values social harmony (or whatever passes for it) above an individual's well-being, stuff like this keeps happening and people who just aren't able to conform either drop or are dropped through the cracks. The only thing you can do when you've been marginalized like that is to find a support network of other marginalized people; Saitou was really lucky to have found someone who understands.