Book with a lock of hair on the cover? /s

[Emma]

Hi everyone :) I'm looking for a book with a lock of (blonde?) hair on the cover. I believe it was published in the 2000's, with a white or cream background on the cover. If I remember correctly, the story is about a single mother who works as a secretary and her daughter, who has an affair with a teacher at her high school. If I remember any more details I'll post them here.

[Tab]

Amy and Isabelle ?

[Emma]

Yes!! Thank you so much!