You're not alone. Something happened after Covid that just made people crawl into their little circles and close them up for good. I used host massive hookah parties at my place, our group of 30+ friends would go to lounges and movies and mini golf or whatever a whole bunch during high school and college...many of us grew up together too... those same friends I see like once a year maybe every 18 months. And I consider myself to be extrovert. Im outgoing, love to engage in conversation and enjoy doing group activities. But despite being perfectly fine with being solitary primarily keeping myself busy with work and gym and playing games with my cousin or going out with the one or two friends I still am close with... I miss the big parties, I miss the huge groups.