Pretty much agree with emMeBi86, what happened is pretty beyond the point of a strong 'forgive and forget' situation, at least for Lily I'd bet at the very least - Rikorisu would have damn near killed Lily and by extension nearly did kill Yukimi, yet all seems to have been forgiven and forgotten relatively fast. Less we forget, Lily nearly had her last family member (that had been around for her) stolen away from her and how angry she was in the hospital, and in this chapter they all seem to have just brushed past what she did with relative ease (Yukimi seems like she would be the only one in the scenario that would forgive, but she's always been portrayed as a more saintly character).