She may very well have asked Nick about that but it was never shown so we (the viewers) can only comment can only comment on what we were shown. It could have been that the editors cut that out to make her seem more determined. But it seems to me from her attitude and things that she said even before going to see Nick, she was very resolute about not cutting her hair.
Given the length of her hair, I'm not too sure there was much that Nick could have done with it besides a bun. There was just too much hair and it looked like it would have been too heavy to style.