Boyfriend [31M] cancelled plans, I [33F] plan to go without him anyway. He's now upset.

We've been dating for 8 months, and the honeymoon period seems to be coming to an end. There's an annual event in the city that we had made plans to go. It's free, so neither of us are out financially on tickets, reservations, etc. I mentioned that I was interested in going last week. He was reluctant about it so I told him that if he didn't want to, then we didn't have to. He brought it up on Saturday and said we should go so we made a plan to do so. Today, he texts me and says he's not feeling it and doesn't want to go anymore. I replied back saying "No worries. I know it's not your thing. [kissy face emoji]" Then followed up with "I'll check to see if my friends have plans to go and join them." He calls me and in the ensuing conversation, tells me he's upset that I'm still going to go, and that he was hoping to spend the evening with me like we had planned. I told him the plan was the event, and I'm not upset that he's backing out, but the change of plans means that we can change who we're spending time with tonight too. It flares up from there with him saying that I don't want to see him and that I obviously don't care about him. I ask if he is feeling sick or unwell, and wants me to bring soup or something, and he says no. He just doesn't want to be in a crowd which makes him nervous. I say okay, I had my heart set on going to the event, so whether I go with him, go with my friends, or go alone, I'm going. We end the conversation. 15 minutes later, he texts me and says he'll go with me. In the meantime, I had already reached out to my friends and a few of them said I could join them. So I text him back and let him know that my friends wants us to join them and he gets grumpy again. His reply "Fine. I guess we'll do what you want. Again." It ****** me off and I haven't replied yet. I don't want him to force himself to come for me. I want to see him because I miss him. I don't want him to be moody around my friends. I also don't want to have an ongoing fight about this next time I see him if I tell him not to come. Disinvite him or not?
TLDR: Boyfriend mad that I still plan on going to an event even though he tried to back out earlier. Now he wants to come and is probably going to be moody about it around my friends. Do I still go with him?


Source.