Touko really doesn't deserve forgiveness no matter how much she wanted to bang Mayumi. Like I'm honestly find with this ending till we saw that Touko and Mayumi are still friends, like they don't deserve to be. Mayumi realized that Touko isn't the healthiest person for her, and while I don't need Mayumi to tell her off, she really shouldn't have stayed in contact. Just makes me feel like Touko will try to get at her again. Like Touko having that sad eye knowing she can't make Mayumi do what she wanted was great, and honestly everything else worked out well enough. I'd love for Rin and Mayumi to get more lovey dovey or at least had an epilogue proper, but that's all.