I'm annoyed that my boyfriend doesn't want me to dye my hair
Your boyfriend feels restrictive. Why doesn't he want you to dye your hair?
He says he doesn't like any women with dyed hair.
You should be able to choose how you want your hair. Your boyfriend can't dictate that. He does however have a right to not like it.
I'm going to dye it anyways, I'm tired of him controlling what I do. This will show him.
You should dye your hair because you like it, and not to be vengeful against your boyfriend. If you're only doing it because you want a payback, then I don't think you're doing it for the right reasons. Try to focus on what you think will make you be happier, rather that something that may cause conflicts with people in your life.