I wrote a love letter to my best friend? regret it already!

yesterday i wrote a love letter to one of my best friends who i grew up with. (I'm a guy she's a girl and we are now both about 20) I sealed it in a letter and and gave it to one of her female friends to give it to her. I've had a major crush on her for years and she never knew it (my best friend not her friend) She feels like a sister to me but also not at the same time. The kinda person i want to grow old with, who i want to retire with in Atlantic city in a beautiful house by the sea, as we reminisce on the precious memories we shared through the years. I'm a very shy guy though so i was afraid to go up to her in person and let her know what i felt about her, every memory that i prayed we can share together, every moment of pure biss that i hoped we could share couldn't all be compressed into one simple phrase, so i put everything into one letter.

This is where the concerns come and where my problem arises. I put all of my thoughts into it, EVERYTHING. I already regret writing it, but its already in the hands of her friend and perhaps her. I told her that she was the most special girl in the world for me, a woman of charm beauty and class that could not be matched. I told her that her dark brown hair glistened like the particles of sand in the wind, that i wanted to make her feel like pure woman as our bodies mounted to form that could facilitate only the feeling of pure ecstasy on the sacred moment the we could finally mate. I went into great detail about how we would look at each other as we would reveal our most intimate parts for the first time. About the shyness and embarrassment but also excitement for stimulation of our genitalia. How I hoped to rub her creamy vagina softly with my palms as we looked into each others eyes and edged my penis deeper into penetration. It goes into detail about the family we would raise together, following this. The home i could provide for her and the happiness we could share... I know after reading this you'll think i'm a nerd but i was really excited writing the letter and i got a bit too caught up in it all. I'm worried I may have blown it because rethinking it now, it wasn't really appropriate considering that we were just best friends and nothing more than that before this. do you think she will ever see me in a normal way after this letter? Her friend saw me this morning and she had a major smirk on her face.. what did she do? what should i do?