Adam, I'm glad you didn't say anything.
I found in the past that when the same thing happened with me it was far too late. Your better bet would have been trying to date her first and then evolving into just friends if that was how it was ment to be.
If you're into a chick put the moves on right away, if it doesn't work oh well. But once you become close with someone it just gets uncomfortable. If you feel some mutual attraction than ignore everything I have said. but if you aren't sure or think it might be you carrying that torch alone let it go and write an emo pop song about her.