Anyway guys, let's just face the reality. The root of the problem was the emotional misalignment between Nozaki and Miharu plus some other dynamics:
1. Miharu was waaaay too slow to recover (quote: "Being kind isn’t enough if it always arrives too late.")
2. Nozaki was too relationship-needy, and he jumped on the first opportunity, Oshiko.
3. The "friend" Oshiko... seized the moment stealing the wanna-be boyfriend from Miharu, yielding to the strong competition trait that female friends have often between each other.
4. The psyco-psycologist seized the moment with Miharu understanding that she was in a moment of fragility, just emotionally opportunistic.
In the end, all of them, Nozaki, Miharu, Oshiko, and even the psychologist I don't remember the name, are acting from need, but need alone doesn’t build healthy relationships.