A little bit off-topic, but can I say I'm so glad I'm not alone in thinking Adventure Time had a massive decline in quality in later seasons? I felt I was going crazy with the number of people praising it.
It went from a fun show that, overall was actually about a kid having adventures to a group of tumblrites trying too hard to be deep. The only things that remained consistently good over the years were the Marceline and Ice King plots. In fact, I would say it often felt that the show lost interest in its main protagonists in later seasons.
Personally, I didn't like the Marceline X Bubblegum last-minute hook up, not because it was gay, but rather because I don't like Bubblegum at all. Marceline was likable throughout the whole show, but Bubblegum, for me, became plain unlikeable