This is because she probally isn't in love with anyone.
By doing as you are asked and told.
carry on find another girl
Stop worrying about it.
Only if you like the girl who asked you out enough to keep the relationship conpteble and lasting. If you don't have faith in the girl then dont go with it.
When a guy falls in love he won't have to be told how to fall for the girl it will happen all by itself.
If you tell a girl that you love her and she refuses, become friends with her and try to be friendly not boy-friendly.
no
Don't be embarrassed. If you like her in that way, tell her. Believe me it will get it all of your chest. I'm not a lesbian, or in fact a girl, but I told this girl I loved, and that made me realise that I didn't love her. Tell her, and see how you, and her, react.
i want her as a true lover
You really can't. What you can do, is become a better man, not for this girl but for yourself. This will help you find the girl meant for you and better your chances at making her yours. I recommend checking this out:
The girl who danced and pleased Herod. And Herod told her he would give her anything she desired, as she asked her mother who asked for the head of John the baptist on a silver plate. The reason was as John had told Herod it was not correct to marry your brothers wife.
She means that though she is into your relationship, she feels something amiss. Get closer to her, and all the figurative language will stop when she realizes that nothing is wrong.