How do I accept it and let go of the pain, I can't stop loving him this much and wanting him/us to be?

im deeply completely madly in love with a man i will literally never have a chance with... ever. he just is not attracted to me physically... i get it but, im so in love in so much pain... I don't know how to let go... i dont want to. :(
How do I accept it and let go of the pain, I can't stop loving him this much and wanting him/us to be?
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