It sucks but I do agree that there are times when you just want to be left alone, but I hope you get better soon. I don't know if it will help but finding something to keep you busy might be a good idea. It could be with other people or games. Stay safe and I hope you feel better soon.
Staying alone is not something I always treasured, liked or wanted, it's just a phase where I'm trying to interprete what I'm currently going through. But you're right, sometimes it just feels like it's better to be left alone.