My boyfriend called me a bitch during an argument. We’re not talking now which is difficult because we live together. What should I do?

As I said in the title, my boyfriend called me the B word during an argument and I walked out of the room. I haven’t spoken nor looked at him since then and I’m currently in our spare room. It’s killing me because I honestly don’t know what to do.

context:

We hung out over the weekend with our friend group and after we drove home our friends, he pointed out how I was behaving with one of our friends (male). He said he didn’t understand why I needed to try his food (and let him try mine) and I explained that I did it not just with that friend during the meal, I even shared a drink with a girl friend because we wanted to try what other people ordered.
Next, he got mad that while he was driving the same male friend home, me and the male friend kept talking about a topic that he (my SO) wasn’t really familiar with. He said he felt left out, like I kicked him out of the conversation. When he pointed it out, I apologized right away and explained that I got carried away because I really liked that topic. I told him I’ll not bring it up again next time. He kept insisting that maybe next time, I can just go with him alone. That angered me a little bit so I told him that while we were hanging out earlier that day, he also kept talking to one female friend about a show I’ve never seen and I didn’t even bother them because I had no idea and contribution to the conversation. He said he just kept answering her questions but I didn’t think so.
Basically, when I tried to explain, he said I was just making excuses but his reasons were valid.
When we got home, I tried to apologize again and hug him but he told me off and in a firm voice not to touch him. I followed him to our room and asked if we can talk about it like adults and that’s when he called me a bitch. Twice. After hearing that, I quickly got up and left our bedroom. I’ve been sleeping and staying in our spare room for the past 2 nights now and neither of us has tried to make the first move. Help.
My boyfriend called me a bitch during an argument. We’re not talking now which is difficult because we live together. What should I do?
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