For some odd reason, I was expecting Satou to be the hero of this episode, but today I doubt he will ever be a hero – just like Yamazaki says, people “like him” aren’t suited to dramatic ends. In a word, depressing. Hitomi is selfish and cruel, her reasons for coming back into Satou’s life were superficial; he is her fail safe option, a shoulder to cry on when she feels down and clearly she has no romantic interest in Satou. He has been dragged along as her token sacrifice.
Misaki’s “confession” was nearly as bad – just like the cruel Hitomi, to her Satou is a selfish reassurance that no matter how bad life can be, she can never slip as far as that “lowly hikki” Satou. She needs him around to validate that her existence isn’t totally worthless.
Naturally, Satou doesn’t take well to these revelations and eventually goes from being the one person not on the deserted island with suicidal intentions to the one personality crazy enough to actually kill himself. His friends (and I suppose that includes Misaki) turn up to save him, but by the end of this episode he is understandably feeling like the loneliest man in the world, his contorted, desperate cries ringing around the abandoned island. It’s not the NHK conspiracy forcing Satou in to his hermit lifestlye, it’s his friends!