Hm, cool then, that makes the manga diverges so much, it would be even more interesting to read than I thought. I remember I skimming through the first couple of chapters and there weren't that many changes in the anime, but as you and many others have said it has diverged a lot.
That sucks if you are reading the manga, but it is very good promotion for someone like me to begin reading it
Yuuko's two personalities merged when jealous of Momoe, and threw Niiya from a staircase, lost her memories of him, but next episode Niiya realized and confessed his love, and she split again in two Yuukos.
I hope I did not end up spoiling the manga
I plan to pick it up when the anime is over, I like the mangaka's artwork... judging form his numerous hentai