Friend advice?

So my best friend's birthday was a week ago and I just did not want to go to his party. So I met him at the restaurant after his dinner so we could go to the movies and out to the bar and he was ignoring me. I was kind of upset because I felt like he wasted my time but I focused more on trying to make the time we were spending together fun. We ended up not going to the movies or to the bar because he refused to even acknowledge my presence. I went home and didn't contact him for a week to give him time to cool off. Last night, I reached out to him to apologize for blowing off his party. All seemed well yntil he started saying he doesn't want to be my friend anymore and he thinks I'm a malicious person. I just can't understand why he wants to throw away 5 years of friendship because I didn't want to go to his birthday party. I get why he's upset that I didn't go, but I don't understand why he's so hostile. As his best friend, I think I deserve a bit more respect than that. Tell me how yall feel about what I did.