MY BOYFRIEND DONT LET ME TO BECAME A BLOND GIRL.......

Why not try a wig first? That way you can still have your natural hair. But if you are determined to dye your hair, then you should. If by changing your hair colour will automatically turn you into something else in your bf's eyes, then you need to prioritise what's more important to you. Someone who loves you for who you are or what you look like. Good Luck.

keep yur hair yu have beautiful hair after all not all blondes have good hair days