I like how you're getting all the lore facts wrapped up in this, and I personally think it's possible that those two races could interbreed (although, unlikely due to them hating eachother so much)... But one niggling fact bothers me.
Night Elves have been in contact with current civilisation for 6 years. Meaning either your character could only be at most 6 years old, or a remnant of the Kaldorei/Troll wars millenia ago.
I like the latter option myself. But it would rule out possibilities of growing up in goldshire and having Kifo as a father. Perhaps retcon your story to fit your character in somewhere?
Hope you dont take this as blatant flaming, but perhaps constructive criticism to help you find your RP spot in the world, and hopefully this guild