Too much love is seen as neediness, unfortunately neediness before a relationship is considered creepy - while during a relationship is considered sweet.
I don't know why, I'm not a girl, I've fallen into this trap too; the best think you can do is keep her guessing, show you like her, show you're not interested. Get her thinking, think about you. Maybe then she'll be the one coming to you. There's no 'puzzle', no 'mystery' to solve if you continuously show her you're interested; I guess for girls, they have no need to suss you out because you've done it for them. If girls are interested then they'll get 'kicks' out of trying to unravel you in their own way, whatever the case, let them come to you more then you come to them. Good luck.