@Dejana , I am so sorry that you are hurting because you love your brother so much. Like everyone else said give it some time for him to realize. He knows how supportive you were of him and he won’t forget the good times with you. Make sure you have a good relationship with his wife and make sure you check on her. I think though it hurts you, best thing to do is to see a therapist and explain. Sometimes they know what would be a good way to handle in your case. Don’t get hurt and don’t try to approach him by yourself. Good luck!