My life took a twist last night!

First off, my humanities final is done and seemed somewhat easy. I got back my paper last night and I have some things I need to fix so I can get a grade. Last night I learned I have a half bother name Joseph. He's 22 and has a 17 month old son named Jeremy and his wife is Rebecca. Our Dad didn't tell me about him because he was worried Jolene and I would get mad and never talk to him again. Silly, I'm not sure I understand that. I'm very excited about this. Jolene still doesn't know. I need to tell Dad to tell her.