Sometimes, believe it or not, as a guy who actually LIKES Bloo, I think he can be a selfish jerk to the point of being EXTREMELY unlikable. I know we're supposed to be rooting for him, but sometimes he's too selfish for our sympathy. He deserves anything bad that happens to him. Sorry, but someone has to say so.
I'm also a bit disappointed that they didn't make an episode where Mac got fed up with Bloo's attitude and the former said he wished he never imagined the latter, and straight to his face, too.