It took me a while, but I think I finally realized and admitted to myself that I'm lonely. I do live alone, but I have a big, caring family. I know what you mean when you say you're excited when people leave so you can be alone again. I kinda always thought that with all the amount of time I wanted to be alone, it precluded me from being lonely, but lately I wonder if it's been harmful for me. But also like you, interactions do seem prevalently shallow, inconsequential. Your therapy sessions sound familiar too, the hour goes quickly, and I even missed my last one—an online friend I've confided in scolded me though, so hopefully I can keep giving it a chance for now. So just letting you know you're not alone. If you discover some secret to feeling better, let me know, and I'll try to do the same. ^^

I've had a lot of fun with AoE2 before, but most recently I've fed my nostalgia with Final Fantasy XIV, remaking my character from XI. I'm glad you found something that makes you feel better.