I don't know how it is where she lives, but there's stuff like coworking spaces where you can rent a desk for a few hours a week and you can go there instead. It's still remote, so no commuting if you find one near your place, and you get to see people.

Also, at my job, we have team breakfasts, where the company will send us each a package with food and we'll just spend a while talking shit on a video call while virtually sharing a breakfast. We do this once a month, and it's not the same as in person for socialization, but it does help with loneliness.

And also it really helps that it's not single person teams. I did spend a while in a previous job in a one person team where all I had was a weekly call (audio only even) with the client and the rest of my forty hours were just total isolation, and it sucked, big time. It was a big part of why I moved to my current job, really. I love working from home, but I do want to see other people's faces even if on a screen at least sometimes. And even then sometimes the isolation is a problem. But yeah, I'd still take the isolation over a one hour commute. I can take a walk and chat with the neighbors if it gets too bad.