It's... Different and I like it that way it touches the subject of fated pairs. They didn't end up with their fated pair but actually someone who they love and can trust. Even when they met their pair they still went with the "true lover." They relationship may have rocky but both couples are happy with who they have. I would say the fact that he overdosed on pills because he thought his "fated" pair would choose him and he didn't. He ended up with someone who loves him and he loves but forgets
Ichika, bachika