I like being around people... to a point. I can be very extroverted, but then I hit a wall and want to go full-on hermit.
One thing I do miss is having *access* to people on a regular basis. Right now, we live in a non-English-speaking country, and the only real social circle I have is other military spouses. If there's one thing I've learned in 15 years as a military spouse, it's that that community so, SO not my tribe. I usually meet 2-3 people at each base who I can really relate to enough to want to hang out with them.
When we're back in the States, I still struggle a bit just because I'm terrible at making connections with people. Once we've connected, it's great. I'm just not so good at initiating things. Most friends I've made over the years have been classmates or coworkers, and since I work by myself at home... well... it makes things challenging. This is one of the reasons I look forward to attending writing cons every year, and try to go to at least four or five. They're socially exhausting, but socially fulfilling at the same time, and I have no trouble connecting with people there, even if we've never met or have only interacted online.
So thanks to circumstances and, well, me, I'm socially isolated 95% of the time. I have my husband, of course, so I'm not completely alone, and I interact with people constantly online, but face-to-face contact with other people is incredibly rare for me. Maybe that'll change when I go back to the States next year, but considering we're headed to a tiny base in an equally tiny town...we'll see.
It's not 100% ideal, but I will admit it gives me the time and headspace to write, and is probably part of the reason my output is as fast as it is. Whenever I'm back in Seattle (my hometown) my productivity goes down a bit because I'm visiting friends and family. One of these days, I will find a way to balance writing time with a need for human interaction... ideally in a place where there are humans I can interact with.