Unfortunately making a decision to live in his place and not be married kind of backfired because after 20 years you surely would be entitled to a half of everything plus likely alimony. Living in his place with zero rights and no independence left you homeless. Well you can’t turn back time but you can start path to independence now. I know you don’t answer questions about job or income or disability but they can only make you eat with them if you are at home. They can’t if you are at work