What is the appropriate thing to do about these free bagels?

There is only one good place to get bagels in Southern California. (Potentially on the entire west coast.) One day, I went in for a bagel and coffee, and the guy helping me gave me 4 extra bagels. I didn’t realize it until I had left the store, so I didn’t say anything.

The next week, he gave me five. The following week, six. It held steady at six for a while.

I hadn’t been in for a while and stopped by today. Bagel guy gave me 3 bagels. But this time, he included cream cheese. So:

(1) Have I been demoted? Or promoted? Or does 3 bagels + cream cheese = 6 bagels in bagelspeak?

(2) Am I supposed to be acknowledging the bagels or reciprocating in some way? It feels incredibly strange to continue to silently accept this freebie.

(3) What do the bagels mean, exactly? I’d like to take you out on a date? We’re really grateful for your business? We made too many bagels?

(4) Does bagel guy continue to give me the bagels out of a sense of obligation? I very much enjoy them, but certainly don’t want him to think that since he gave me free bagels once, I expect free bagels in the future. Is there any reasonable way to communicate this?