There are two ways you can aim at making her show interest or at least realizing how she feels, if she does at all.
You can pull the personal one and actually go see her, I wouldn't even suggest organizing it TOO much just generalize a location and meet her..stay around a little bit and then bring in the outburst. Note: Requires confidence and some acting skill - not even necessary if you really feel this way.
As in,
"I can't do this. I lied about seeing that other girl to see how you felt ((even though you didn't.)), but I guess.. I didn't know what I was trying to do. I can't just see you as friends, so I'm going to ask again for..the last time. Will you go out with me?"
OR
You can pull a date - ON YOUR BIRTHDAY - and send her a text, or better - Call her! It gives her less time to consider her answer and puts her on the spot! And ask her to come out with you. Don't say anything about it till she meets you. Take her hands and face her to you and then say, "So..it is my birthday..I was going to have a party but..I'd much rather spend it with you." Watch her heart melt and then if she doesn't lean in for a kiss, hug her yourself long and tenderly and kiss her on the cheek. Wait for that to develop, won't take long.
The above one worked for me.