>>114667594This
This right here should have been the end. Even when I was a dumb teen that episode felt so weird to me. Like it felt like a series finale.
Finn, after all his troubles and adventures, finally gets the girl of his dreams. The episode ends with all the candy people cheering. Jesus even as a kid it felt weird. I was like, “Is that it? Is the show over?” But to answer OP’s question, the minute this series began going downhill was the introduction of Fire Princess, all of a sudden, from that point on, the show changed from a boy and his dog going on adventures to after school teenage love triangle drama, the lesbian Marceline and Princess Bubblegum where the final nails in the coffin of this show.
