The Mika-Eri-dead twin situation was so confusing.

I'm glad I'm not the only one who's confused... they got married?... why? Eri, I get he loved Mika but it didn't seem to me that Mika felt the same at all

Yeah. I didn't even get if Mika and the dead twin were an item or just friends. I would have been fine without their extra lol

i think their not an item.michiru and mika, i mean. Eri was inlove with Mika and got jealous of how they were closer than him in Mika.