It was about a teacher, I belive something along the lines of Anne Taylor, and a boy and the rather strange relationship they had.

It had a line like "She was all things to all people" and one of the lovliest things I had read in ages.

ETA: I have found it. It was "A Story of Love".

A story of Love I have never heard of that to bad but I have heard of the great book something wicked this way comes