Veru,
I can understand this clearly, because it is similar to the relationship that I have with Sylvie. When we started, she disobeyed me often, just to get punished. Not like you, I know, but it didn't take me too long to figure out that the worst punishment I could hand out was to keep her away from me, and not let her do the things for me that she wanted to, like the baths, the hair brushing, the casual contact in public.

In our case, the psychological punishment is worse than the physical one, especially since the physical punishment is what she craves.