Husband hasn't been wanting to have sex with me

It's been 4 days since me and my husband have had sex and I know for some people that's not a lot but I've been trying to get him in the mood. When he's showering I'll go up to him and touch him and he will move my hand and tell me to stop and he's not in the mood. I'll ask if I can get him the mood and he said no. He doesn't want to have sex right now. He did that today. I again tried to get him in the modd while he was in the shower and he told me to stop. I asked why and he said he doesn't want to have sex right now. He just wants to relax in the shower. I got upset and said "Fine. You're clearly it attracted to me and we just won't have sex ever again." He said "Oh my fucking God!" I just don't understand and feel rejected.