Is this a good goodbye letter to send to crush?

No time to really explain the details but basically things really aren't working out with a girl I have a crush on and it seems like things just keep getting worse and worse and I might have to walk away. I couldn't sleep last night so I wrote a goodbye e-mail just to get all my emotions out, no clue if I want to send it but I wanted someone to read it and see if it was suitable.

"This will likely be the last e-mail you'll ever receive from me. I just had some final words I wanted to say... Remember at the end of last summer I confessed that I had a crush on you and that I said I would try to get over my feelings? I tried - I couldn't. To be completely honest, the first time I ever saw you last summer, I don't know what it was but I felt this connection. I don't know what it was but it wasn't just a crush, it was something like I really thought we were meant to meet each other, platonically or not something just felt right being around you. All of the school year I would think at least once a day "I wonder what <girl's name>'s up to right now." but felt I didn't have much to talk about so avoided much contact. When this summer came along, I thought I'd finally have a chance with who I thought was the prettiest, sweetest girl I've ever met. I really thought I loved you, that you were the one perfect girl I've spent my whole life waiting for, I don't think I've felt so strongly about something in my life. Clearly this wasn't meant to be. I'm not stupid, I know that "busy" is clearly an excuse for not wanting to hang out. No one person is THAT busy. The sleepless nights I've spend thinking about you, the nights I tried to make plans with you, the days I've spent wishing I had the courage to talk to you, the tears I've shed, all of this was simply a waste of my time. It hurts so much to have to walk away and give up, it'll take a very long time for me to get over the hole you left in my heart but I do hope that maybe there's a chance we could possibly be friends later on but for now I'm giving more than I am getting back with you. I hope you have a successful life and I know you'll eventually make another guy very happy and he'll be so lucky to have you, but clearly I can't get anywhere with you and if I haven't by now, I never will. Goodbye."