We think Adele is saying "Nevermind, I'll find someone like you" as in "Screw you, I'll move on" but really she is saying "Nevermind I'll find, someone like you" as in "Never again will I find, someone like you". Silly British phrases =/
It's basically the opposite, I always thought she was saying "I'll get over you, blah blah" but basically she's saying "I'll never meet someone like you again, thanks for mutilating my soul"