Atonement of what? Somebody explain me please.. ⁄(⁄ ⁄·⁄ω⁄·⁄ ⁄)⁄
i also thought that at first but it cant be exactly called atonement
he just dont want ren to go though what he did
atonement is far greater than regret
that what i believe
I'm pretty sure it's just related to the fact that he loves Ren in a romantic way instead of as a brother. Consider that he saw Ren as a small child to be protected, and Ren is still underage. So having any sexual relationship is a crime. Most likely the atonement is just the type that's often seen with adult, or significantly older partners, towards the younger partner. Since they feel like they are taking away their youth/freedom and that there might be a better partner for them in the future.
she fall in love again for the other guy (/TДT)/