Being introverted doesn't automatically mean you can't have friends. There are 4 types of introverts, Social - who aren't necessarily shy but prioritize their alone time more and prefer small intimate gathering with a few friends rather than large gatherings, Thinking - these ones typically love hypothesizing, creating, ideating, and storytelling to such an extent that it dominates much of their mental space, thus de-prioritizing other people as an unintended effect. These introverts might come across as aloof or spacey to anyone who can’t hold their attention, Anxious - these ones are the guys who are typically unsettled or uncomfortable in social gatherings and occasionally even when they are alone. They may suffer from social anxiety, or a related anxiety disorder, Restrained - they are typically very guarded until someone gets to know them enough to encourage them to leave their protective "shell", after which they become a lot more comfortable with the rest of the group. Introverts may be one or a combination of these traits.

How the hell do you have a surprise Zoom party? Did one of them hack your computer, and force it to connect to the call? If I don't want to speak to anybody, I don't answer them. Simple as that. And my roommates get flipped off. If they're friends, they would understand you wanted to be left alone. It's not rude to turn down a party you didn't know was happening.