You're not alone lorkan, I keep kicking myself to this day over my shitty treatment for the one girl who ever loved me. I was only 16 at the time, and this was unusual territory for me. For one thing, I did have another girl on my mind - which complicated matters more. Plus she freaked me out when she seem obsessive about being with me all the time.
I was fond of her, but not deeply in love with her. So I kinda panicked under the circumstances.
I can only hope she's forgiven me for the way I acted.