Repost..with an update..first fight :/

So I have been with my boyfriend for a couple of months now, yesterday we had our first big fight. He mentioned something that I never said and things escalated. I went to the bathroom and when I returned I told him I was ok and I was over it. The entire night he kept bringing up that I was mad. When it was time to go he was completely pissed at me. He won't talk to me or explain why. I just dropped him off and I tried texting and calling to get a explanation and no answer! I am trying to give him space but what do you guys think, should I reach out to him if I still haven't heard back?

Update: he still hasn't said anything at all... these are the last couple of texts. What do you guys think?

I have been thinking a lot about what I said that got him upset and I was being an asshole to him...i do recognize that I was a straight up bitch. How do I communicate this if he is still giving me the cold shoulder? I am afraid that he is done, after one fight...i have been miserable without being able to talk to him.