My go would be: Listen to her words.

While I of course do not know your friend or can look inside her head, my take is this: You have you told your friend that your feelings for her. She has made it clear that she sees you just as a very good friend. So leave it at that, really.
I know, it really isn't easy when her displays of affection from her to you feel like so much more for you, but right now – no matter that she is bi, no matter that she is leaving her partner- , please do not get your hopes up too high here. You are living with her, and really, if you get your hopes high over what is "a normal friendship" for her, disaster is bound to happen. I'd really be cautious here and try to protect myself. I am trying to imagine what living with the person that I was in love with but who only saw me as a friend would be like, and really, I imagine it to be heaven and hell at the same time. So really, be careful here, hon.

While you said talking to her really isn't something you'd like to do again, I think it might be a good idea. She is your best friend, you two are very close, and you should discuss this and handle it together, as uncomfy as discussing it is. 'tis always a drama when one friend falls in love and the other one doesn't, but if your friendship is as strong as you think it is, you two can handle this, I am sure.
Maybe she will change her mind and see you as more as a friend, one day, but really, gal, do not wait around for that, or expect that, or see her expressions of platonic affection as that.

If you want to, I'll move this to GLBT relationships, so that you get some more views on this. Drop me a line if you'd like that.

Wishing you all the best, gal.

------------------
Caro
~spanking new Scarleteen Sexpert~

I would go ahead and take what Alaska said to heart... I think that was great advice. And I also recommend talking to your roomate; you've got nothing to lose by simply talking about it. See where you both stand, let her understand where you're coming from and try to understand where she's coming from. Work through it together so you're not just trying to fit the pieces together by yourself.

Good luck, hon. Keep us updated, ok?