He only wants it if I want it

This is not a dirty post, despite the title.

I love my husband. Truly, he is the best thing that's ever happened to me. But there are things he does that drive me nuts. Here is an example:

C (calling from the road): Hon, I'm stopping by (drive through/restaurant/coffee emporium) and getting a (snack/meal/coffee). You want one?

M: No, I'm cool. Just come home.

(I come through the door with my goodies. M sidles up to me.)

M: Hey, that looks good. Can I have a (bite/sip/piece)?

C: I would have gotten you your own.

M (looks sheepish)

He's going to get mad at me for this post, but I guess it's just human nature to only want something if someone else finds it desirable.