My other brother didn't want to come over

I was with my good brother today. I told him help me with the stuff out the car before I drop him off. He said he not coming over cause the bad brother is in the house. He can't stand him. He doesn't even  consider him as a brother. He said he disown him after they had a huge fight. I told him no matter what he still your brother. I'm stuck on the middle. I'm not taking side but the bad brother always do wrong. It's sad that they can't get along.