Or he could be sad that his Mommie is just so darn happy all the time and that she is wasting time trying to think of sad things instead of making happy videos out the butt...lol (JK)
Poor Dexter... so sad that everywhere he goes, everybody makes over the little sister more than him anymore...
He's feeling so old and uncute...
He longs for those long past happy days when he got all the attention from everybody, everywhere....
Oh woe is Dexter! Poor, poor baby...
Now I'm crying...