I'm dying here, Mynx. Please help us. This is, first of all, a normal reaction. Normal as it may be, it ain't fair. You may end up being the love of her life, but you have no business expecting her to have locked herself in a room until you happened upon her.
People grow and change and learn from their experiences.
At a recent dance I met a very good looking girl. I did so, and when we got to the door we hugged and began french-kissing. This kiss, my first real one ever, went on for about 15 seconds. She was a very good kisser, but I was very bad. I kept biting her lip and just overall messing up.