Alan Watts says that "Existence is a function of relationships." That we crave connection not because it's something we need to build, it's a discovery of something that already exists.
Scientific studies have shown that looking into someone's eyes for 10 minutes can actually change your consciousness. That's how hard-wired we are for connection, even if we may feel introverted and alone.
Take some time to hold eye contact with someone and see how it changes you.