Single player here too. But in my defense, I have many many friends, but none of them is into gaming at all. My cousin sometimes comes to play Gran Turismo, but I would say that's once a year.
Basically everybody works, has a wife or children, that leaves me alone with my girlfriend (we don't have kids). Rarely I play with her, she doesn't like it so much, and if we play, also once or twice a year, it's probably a retro Mario, or something similar on the Switch. She's obviously also not really good, can manage 2 buttons but more is not really possible.
I used to go for years, like since PSX times until PS4 to my best friend regularly quite often during weekends to play FIFA or PES, but he's quite sick since some years and we don't unfortunately see each other anymore, he completely blocks any kind of contact and just stays home, even got sacked at work and is not working anymore.
I'm also single kid, so I'm used to be alone, plus I like it.
I'm still playing one multiplayer game, my guilty pleasure Rocket League, almost 2700 hours on the counter. In the beginning it was playing competitive, playing together with 2 friends, but now I only play rarely, mostly weekends in the late evening when I'm drunk and girlfriend is sitting in the garden and complains why I play that stupid game
