Yeah, the frog can certainly be a fink sometimes.
I have never been able to accept that Kermit didn't care about Piggy and didn't expect that--eventually, when he got around to it--they'd be "together." I just don't think that Kermit (i.e., some MEN) had the same idea of "together" as Piggy (i.e., some women) did. But to think that he picked her for the part of his love (and occasionally, his lover--watch those fantasy scenes in TMM!), wrote the part just for her, played the scenes with her to perfection (always scripting her to say the "I love you" or mushy parts) and cared nothing about her---well, that's not a nice frog. That's not a nice creature. There is not one person on the planet who can think that if he did all of that--and did it knowing that she loved him--that he was a nice frog, and that he was blameless in hurting her far worse than was necessary. Kermit, who has compassion for Fozzie's insecurity, and for Gonzo's borderline idea of talent, and for Bearegard's fix-it-up skills that usually end up being tear-it-up skills--that THAT Kermit did this, and did it without caring a bouncing baby fig about Piggy? Impossible.
Kermit's not good at expressing himself and strong emotions. He can give a rousing speech, but ask him to talk about his personal feelings and he's going to go off and talk to himself. (Just like a puppeteer....) So it does make sense that, panicked and cornered and overwhelmed by feelings he doesn't know how to control, he says some rash things, and does some mean things, and drives away his only real hope for not growing old and wrinkled and miserable alone. And it also makes sense that Piggy would forgive him, because she does understand him, and she knows he may never be able to say what she wants him to say unless he scripts it, and maybe not then. But not being able to say it doesn't mean he isn't able to feel it, and I think the preponderance of evidence says he does feel it, and does love her.
I like how emotionally together Piggy was in the movie, and I like the way you are letting us see how you think she got there, Dear.* Kudos to you and to my girl for getting herself together and becoming happy like she is, frog or no frog.
*(I am so sorry, but I simply cannot use your screen name comfortably because it is the way you'd typically address the Mayor or a Justice of the Peace or a Magistrate. Is there something else I could call you, or can I just be Southern and call you Dear and Sweetie?)