It’s immediately what I caught onto, the first time through, surprisingly. Some of the things that I caught onto much later are more obvious though… like how Hank Hippopopalous was the first one to make the, “What is this, a crossover episode?” joke, back in the 90s at the award show party where they all 3 met. Mr PB loses his young Labrador mind at the clever quip, and he’s never let anyone forget how clever he thinks it is.
Idk it would HAVE TO implode… and I’ve never thought about this before this very moment… but i think they’ve got a serious chance at sustaining their romantic relationship longer than Mr. PB’s previous marriages.
This would be in an alternate storyline where Bojack wasn’t annoyed with Mr. PB when they first met though, they’d have to be casual friends, not rivals, and then, one “stuck in an elevator” type of episode and BAM! Right in the kisser.
Nothing bad ever happens on the Labrador Peninsula!