He's a total fruit 
but there's proof he likes Sandy. I used to have a calendar where Spongebob gives advice for every month. In the February one, Sandy's mentioned in there.
What was the advice?
"Don't get nervous when you go to his/her house, for example when I go to the Treedome I stay perfectly......No...wait.....You didn't hear that."
or was it Spongebob's Surival Guide I was thinking of
