Thanks so much for your responses.
I wasn’t actually upset. I assumed my brother just wanted his privacy. It was my Dad who was angry how we found out, so I was wondering if my reaction was too indifferent. It turns out he did not want our mother to know for some reason. We found out because of my brother’s best friend’s sister who told one of my sisters. Because of the way we found out, I didn’t know if it would be appropriate to visit him in the hospital or not. I decided not to go and that if he wanted me there, he would have asked me to come. I hope I made the right decision.
@LuckyGuy I really appreciate your response. It helped me have a conversation with my Dad. He still seems annoyed when he talks about it, but he at least seems to have let it go now. As for the person who told my sister, I never talk to her anyway. But I do understand your warning and have taken it to heart.