The silent treatment

After 3 1/2 years together my boyfriend and I got in a huge fight about, well.....stupid shit. It was because my dad was telling me how bad my yard looked because of the leaves that fell and weren’t cleaned up until late December. I had asked my boyfriend for help, but he didn’t help me. I did it myself finally. But after my dad made that comment I was frustrated and texted him about how bad my grass looked. It turned into a ridiculous blow up. After arguing with him for 3 days he stopped talking to me around 9:00 am on Saturday morning. I didn’t contact him until Sunday evening around 9:00. We exchanged some words and I texted him last. I know he’s furious in the way I blew up. Today has gone by and I still haven’t heard from him. I don’t want to reach out to him again since I have already done that. What would you make of the silent treatment? Is this a form of punishment?