I asked the opinion of a friend of mine and my personal definition of unrequietd love isn't correct. Charlie Brown and the Red Haired Girl is unrequieted love. He knows and loves her, she has no clue.
Kermit and Piggy? He's a player. He shows his interest, but doesn't want to follow through (my buddy's opinion). So, being a 'player,' which I thought since he doesn't necessarily SAY he's interested, I considered unrequieted; but, my buddy says I'm wrong.
Still, it is my personal opinion that to NOT be unrequieted he needs to be a bit more favorable of a relationship than not. I don't think the bickering would be as funny if they were an 'official' item. But, that's just my opinion.
Maybe there'll be another MuppetFest of some sort that Piggy and Kermit can attend and let us know for sure, eh?
(See, how I'm segue-waying this back onto topic?)