Is he being crazy? Or am I?

Last night while I was at work, my situation and I were sexting. I went to send him pictures and they just kept saying “sending” on my end. So I just I sent them and was going to resend them and told him I would. But then I got busy and didn’t answer for 20 minutes. In those 20 minutes, he triple texted me. His last message was him saying that in 20 minutes I should have had time to press a couple buttons and send them. Then immediately followed with a goodnight message. I didn’t say anything for the night because I figured I would talk to him next day. When he gets mad, he gets pretty mean and aggressive and I didn’t want to deal with it. So I texted him when I got up but it was too late. He sent a long message about how I could not have been that busy, how I “do this all the time” (I really don’t), how he doesn’t want someone like this. I was trying to explain to him and gave examples of me communicating. He said that I “do good for a little bit and then get lazy” (he’s called me lazy - and a few other names - multiple times in just this past week) about communicating with him the way he wants. Then said he wanted space and even told me he might say no to having sex because he’s so mad about this.

I get I should have said something, sure. But it’s hard to even just WANT to communicate with someone who gets mad so easy so fast and then spirals in aggression. I even told him and he just kinda was like “yeah” “idk”

Idk if he’s just trying to use space and sex as a punishment (because he knows I don’t like taking space and have a higher drive than him and he’s a “tit for tat” kind of person sometimes)