If theres a way in, theres
always a way out! I'd say that
keep on gaming her until you've got her.. Keep on gaming her till you have neglected out all mistakes in your game, then you will, eventually, catch her

! I was once in the same position as you are now but I learned the hard way from every mistake I did, I reframed all of the conversations in my head and thought days and days (I still do this) for solution to more solid gaming. There are some hardcore steps that I could put on note :
1.
Never compliment her without negging her first or her earning the compliment.
2.
Make her jealous! Flirt with her friends right in front of her! Girls compete on this alot and it will same time confuse her as she thought that you liked her, but obviously she was wrong.. You are able to hit on women, why? Because thats what PUAs do.
3.
Tell her about other girls you have met! This is to make her think that she can't catch you anymore (or just somehow say "we are just friends", which turns the situation around.. Tada, she doesn't see you stuck in her LJBF-zone anymore!)
4.
Use alot of push / pull. Easy example would be, if she asks "Do you still like me?", answer with something like "Yes, of course.. Why not? I mean you are a very loyal and great friend

!" which will confuse her as she thought for a moment that you are her own, but then you almost immediatily pushed away from her! This might result of her asking numerous times that same question.. Just
Never give her the answer she wants!
5.
Don't get stunned and turn to a wussy from all the IoI's you get! This is the most important step! This
doesn't mean that you ignore the IoI's. Remember to change the frame.. When many IoI's kick in, you change frame and game her the normal way

.
6.
Make her invest on you (Buying you things etc.), NOT the other way around!
7.
Escalate kino but don't go too rapid on it! By rapid I mean that a person who knows that you aren't too touchy but someday you just wake up from a coma and start escalating kino like it would be a disease.. It will confuse the person.
8.
Don't give yourself in too easy, it will just bore her By this I mean that don't be that person she may call everytime and hes always available. You are a busy guy. You are PUA

!
Those are just some examples I could think of right now, personally I would say that the rule #5. is the most important. Keep your frame up man!

Good luck[/b]