It was a very different type of revenge. The last two episodes showed a different type of revenge and jealousy that no one speaks of, which is sibling rivalry; you have to give up when you are a sibling's caregiver.

To me, Hirose Kanata made her own unhappiness by the decision she made when she was dating Sakurai Toru, not letting him meet Hirose Hinata or even having him over for dinner. Also not saying "no" to her sister when she wanted certain things.

Can you blame Sakurai Toru for cheating on her with Kuroda Mika? Yes, absolutely; he should have told her how he really felt and had a good conversation on how he wanted the relationship? Sad to say, Kuroda Mika is a psycho, and she needs therapy; she killed an unborn child. I didn't forgive her for that.