Showed up at my window one night. Let it back out and never saw it again.
See, I've heard that before! The dark coloration spreads a bit with age. Honestly, like you, no idea. I've had striking looking kittens show up before, and three yrs later, come back and say hello.
I believe this little one will at some point.
That's a good lookin cat right there and if I were a betting man, I'd wager it's siamese. Just my opinion, of course.
I've also always heard siamese are a bit temperamental.
Idk.
Please hang in there. Surgery can take it out of ya. 🙏