Having a good employer is like winning a lottery, and one that still values you as an ex employee and friend 10 years later is even rarer. Sounds like the relationship and appreciation must be mutual and your performance must have left a big mark on them and their loyal customers that they are so happy to see you again.
Yes, it's a mutual appreciation, indeed, and it feels great to be back. This was my first and only permanent part-time job that I started when I first relocated to the UK, and I've always regarded it as one of my biggest blessings.
Yes, patients were really happy to see me, and it feels like it was just yesterday since I'd last seen them:)))