I am pretty sure the movie was set in England.
The scene I can remember was a woman and a man, I think they may have been lying in bed.
The woman tells the man how she remembers first meeting him, when his school (I think it may have been Eton) came to play a football game against her school. She says that he smiled at her before he went out onto the pitch. He was popular and she was not. She says something along the lines of "do you remember me?" or "you don't remember me do you?"
He replies something like "of course I do. You were the chubby one" and also something about her either being in the band or having glasses.
She says "good guess" or "lucky guess".
I'm sorry, but that's all I can remember! It is really bugging me though, so any help would be greatly appreciated. I don't think it is an old movie, I would guess in the 2000s or at a stretch 1990s.
Thanks!