I don’t know what to do

My boyfriend and I have been together for a year and 3 months and he just got really mad at me because I don’t want to have sex right now. He was over and he was trying to get the mood started and I was trying to get myself there but it just wasn’t working. So I told him I wasn’t feeling it and he got mad. Then he said something and I didn’t hear what he said so I asked him and he refused to say it again. Then he called me a fucking idiot and said that he couldn’t deal with me right now and left. I texted him and he hasn’t answered me. I don’t know what any of this means or what I should do.