You lack a flair for romance dear sir!
It's not romantic if they don't know each other yet, it's creeptastic.
Girls run the other direction screaming when you tell them "I like you a lot" <heavy breathing red face palms sweating> before you have gotten to know them on a personal level on instinct... it's creepy, it's weird and it's wrong.
She would be perfectly within her rights to reply...
"thanks for making my last moments on earth horribly awkward and uncomfortable"
And for all anyone knows the girl worships hitler, hates whatever nationality he is and is allergic to food. Invite her to coffee and find out if the attraction is more than skin deep before you start writing her sonnets. The End