Is it normal for my younger brother to ignore me for weeks after a fight?

For context, my younger brother 20 years old, stopped talking to me recently. We had an argument and I said some things I didn't mean but I tried to reach out to him a few days afterwards after the situation had cooled down to sort things out and he pushed me away. i feel really bad about the things I said but I know I can't take them back. Not sure what I did to deserve this level of silent treatment, I really do love him but it doesn't look like his interested in talking things through so I don't know what to do or how to act. Like he literally pretends I'm not there and that I'm thin air that he has to navigate around, it's hurtful. Is there any hope?

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2 mo
It's been a month since my brother ignored me, this is the first time this has ever happened and I'm genuinely in shock
Is it normal for my younger brother to ignore me for weeks after a fight?
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