Also, you mention "only 2 more chapters to go", but isn't there at least another 7 chapters? (Unless you mean only the next 2 will be translated by you, which if fine too)
There's a lot of netori in this, I believe that blonde girl (I think it's the same girl from this chap, could be wrong) now has that curse .. or not idk, but they do fool around together.
If you mean the girl with the glasses that he bumps into at the theater on page 16, that's their teacher in casual clothes. She's on the top right of the color pages in Chapter 1 page 4. And she does find a copy of the cursed book.