I’m being claimed as a dependent on my boyfriends taxes we share 1son but I’ve been made to not work. And then he give me no money

I feel I am being taken advantage of by a boyfriend who has controlled my life for 16 years and now He’s collecting the money for our child and for myself meanwhile having me get Medicaid for myself and our son when he makes great money I need advice on what I can do about someone illegally claiming me as a dependent