Is he serious right now!?!

So my great uncle died today. The funeral is Saturday. I told my SO how important family is to me when we started dating. We've been together two years and have a ten months old baby. I asked him if he would come to funeral with me because I know I will need him to lean on and he told me no. I'm hurt and beyond pissed and he said he didn't care how I felt he wasn't coming. I can't believe it, is he really being serious right now!?!