Me and my brother were very close when we were kids, but we started to drift away at around the age of 12. I figured this was just because we were both going through puberty and awkward times. Now Im 19 and hes 18, and we are living together for college. He always seems awkward and never talks when Im around. When hes with his friends or our cousins, hes really outgoing and "himself". Whenever his friends are over, he talks with them normally, but as soon as I enter the room he just stops talking. Whenever he talks to me he avoids any type of eye contact. I feel like he hates me but I dont know why. We never have proper normal conversations, its always silent. Whenever I try to start a conversation with a question, he always answers it in an annoyed "stop talking to me" kind of way. Its ridiculous that were only one year apart and we cant be brothers. Hes the same way with my parents, always short tempered and eager to end the conversation and leave. I talk with my parents about it alot and I feel like they are very hurt by it. When we go back home for holidays he sits with them for like half an hour after we get there and then goes to his room. Sometimes days go by without him interacting with us. My dad sometimes tries to go in there and start a conversation somehow using random things like "can you come show me how to do this on the computer". What should I try to do to get closer to him?