Your whole life is passing by and he has purposely isolated you from your family. He does not own you - you are not his possession. You have and have always had the right to come and go as you please and have your friends and family members come over any time but he has denied you that right. He is insecure and jealous of your sister. He wants you all to himself....he is treating you like a possession. He doesn't get to tell you "no" your sister can't come. It is not even his right to do that. I feel so sad for you that you have let all these years pass letting him tell you what to do. It will be hard and there will be arguments but you have got to stand up for yourself before your life just slips through your fingers like sand. You sister should have been welcome each time she wanted to come. It sounds like he is afraid you might care about someone other than him. Please let your sister come and see you...tell him if not, you are going to see her and you are staying for two weeks! or three! Your life is passing you by and he is keeping you from living it.