Navigating friends

So I am an only child and live on my own at 26. I do have friends but I am very comfortable in my own space and company. My other friends struggle with just sitting by themselves for a day let alone like how I love.

Sometimes I get into “I’m fine on my own mindset” where I accidentally shut everyone out. Yet is it shutting everyone out or is everyone starting their own lives and occupied with growing into their own person.

Sometimes I feel like I contribute to my own loneliness for not socializing more or texting people more. I still go out lots and do things I’m not a total introvert.
Sometimes I can go a few weeks without talking to ppl even my bffs.

Anyone else struggle with being too comfortable on their own?