Due to job issues, I haven't visited my SM K-org faves much this year (combination of distance and cost). As constant readers of this column have noted, SM K-houses have aggressively hiked their prices, even compared to SJ orgs .. base prices are now $$$-$$$.2, with PSE and MSOG being upsells.
I recently visited one of my past SM favorites after not seeing her for a year; yes, it was her crib, yes, she sort of looked like I remember her, but I got the nagging feeling it wasn't really her.
This particular provider always kept the lights very low, as she made up for her quirky, plain looks with off-the-hook maniac energizer bunny service. I was a little perplexed, as back in the day, flush with my tech-unicorn bucks, I'd had a number of hot sessions with her. But she didn't recognize me, and mentioned it a couple of times in her vastly-improved English how nice it was to meet me.
So, what would you do? Just shrug it off? Or ask the PO what happened to "X"?