My brother, age 25, has Aspergers (or high functioning autism as I suppose it would now be referred to). I'm 21, and currently we both live at home with our parents. I've always been very close with him, however in the past several years he's been directing his obsessive behavior toward me. To some extent, I know he really does just care a lot about me and wants to spend time with me. However, I'm getting to the point that I simply can't put up with him harassing me any longer. He will hug me over and over again, sometimes drag me around, sit too close/on top of me when I'm sitting down in the living room, poke at my face constantly, and repeat various phrases and chants about his adoration of me. When I moved away for a year, he would direct those behaviors toward my mom more, and repeat over and over again how he missed me. At one point he had dozens of papers scattered in his room with those repetitive phrases about me. And when he wants something from me, he just asks over and over again until I agree (if I never agree, he may well keep asking all day long). All of these behaviors are worst when he's stressed out about something, and I want to be understanding and help him feel better, but it's just too much to cope with on a daily basis. It sounds creepy when I describe it, but given that I'm his sister and the relationship I have with him this isn't how I perceive it. Our relationship isn't all around terrible, we sometimes have very positive interactions, but specifically as relates to physical touch, I'm not sure of what to do other than moving out. But then when I visit, I expect those behaviors will be even more extreme and therefore I don't think it would improve our relationship.
At this point, any time he touches me I become extremely agitated. I often instantly resort to yelling at him, knowing that simply asking him to stop or pushing him away has no effect. I hate yelling at him. I've asked him before if it hurts his feelings and he says it doesn't, but either way it certainly makes me feel horrible. I always over exaggerate my facial expressions and tone of voice since I know he doesn't pick up on more subtle cues, but the problem isn't that he doesn't notice, it's simply that he can't or won't stop. We've had discussions with him, explaining to him how much it affects me. We've been to family counseling, and that helped a bit at the time at least. He used to do worse things, so there has been some improvement at least. But I feel horrible that I'm starting to resent him, and resent not having bodily integrity when I'm around him. My relationship with him is important to me, but I fear that after enough time I may start to hate him. Come to think of it, this all started basically at the same time that I first had issues with depression, so I can't help but think that my brother's stability depended on my own and that I am the cause of these behaviors, to some extent.
Has anyone had similar issues with a sibling (or any relationship really) from either my brother's or my perspective? Any advice?