Oh, you sound like me when I was young and a low T cuck.
Women aren't perfect. They are the opposite of perfect. The fact that you're idealising her shows that you aren't ready to be around women - they will exploit you, chew you up and spit you out, at worst, and if they have some kind of soul or heart, like this one seems to, they will friend zone you.
If you truly love this girl, tell her that you won't be friends with her, and you have feels and won't just be a beta chump talking partner. Then tell her that if she cares about you, when you talk to her the next time, she'll give you a chance romantically.
Then don't talk to her for years, until you grow into a man. It'll be difficult and you'll be tempted to make arrogant mistakes, and contact her before you're ready. I did, and I screwed up the chance I had. And I really really loved this girl.
Once you are truly, truly ready, talk to her again.
Signs of being truly ready:
You are as confident and willing to speak your mind on the internet as you are off the internet. This means that you can handle yourself in a fight and you recognise that your role as a Man is a warrior and (metaphorical) killer.
You can benchpress your body weight.
You have a good job or are in the final stages of a strong degree.
You have slept with multiple women.
You have genuinely loved other girls who you slept with.
You don't care if this girl who you fancy so much rejects you again, and if she does, YOU are strong enough to friendzone, but actually eventually sideline and ignore her. Women who aren't your sexual partners or related to you are not worth your time, for attractive men.
You realise that, as a woman, she is the potential lesser partner, that her opinions are worth less than yours, and not at all when she disagree with you, and annoying/teasing/bullying her until she gets angry and refuses to talk to you/sulks/etc. is funny.
You are capable of having really dominant sex with her and making her orgasm repeatedly.
When you can do all those things (aka you have balls) she will find you naturally attractive and want to love you.