Does he support you? Is he paying child support? Do you live with him? Do your parents support you? Do you live with them?
If he is not paying more than 50% of your support to live and you do not live with him, he cannot file and get income tax back for you.
If you did not use your boyfriends income for getting food stamps, I am pretty sure he is not allowed to claim you as his dependent and get money back for you. It is not right for you to get free food without his income but, let him act like his income supports you.