I don't recall her water needs going up while bathing Daisy, just the "love" bar.
The weird thing that bugs me at the moment is the fact that I have two winters, one spring, one autumn and no summer. The option just isn't there. I plan to play into the next winter season to see if it's an icon problem or if in fact my game has no summer.
I should trade with Pescado, since he hisses at the sun! Oh, Pescado, where are you?!