No more Bubblegum?

Recently, in Hot to the Touch, to be exact, Finn has gotten over his first crush for the temperamental Fire Princess. Why this makes me sad, I'm not sure. Maybe it's because of Fire Princess's confusing nature. She's destructive, yet she seems to want to just fit in, evident when she tries to touch the flowers in the meadow, but they end up going into flames. I'm not saying I don't like Fire Princess; I do, I really do. I think she's cool, but she just needs to get her temper under control. But I guess that's the nature of fire, though, to be wild, untamed, free.
But even with her attempts to be good, I don't think she can be with Finn. Like Fire Princess said herself, "You're a water elemental, and I'm a fire elemental: we can't be together." But then Finn goes to insist that he's not a water elemental, he doesn't cry all the time, and that he can make it work, somehow. Then Fire Princess says, "Really? You'd defy nature for me?" and she hugs Finn. Then Finn squeals a little, and Fire Princess runs off.
She first thought Finn was out to hurt her. He kept following her, and he tried to stomp out the fire. For some reason, when you extinguish fire that she set, it's like stabbing her with a knife. I bet that's one reason it won't work.

Maybe Finn's obsession with finding someone-- anyone-- to fall in love with has to do with the fact that he's possibly the last human alive. (Unless Susan Strong is actually his mother and not a mutant. Who knows? Maybe he has a sibling? I'll post another section about the Great Mushroom War. That'll help you understand the mystery about extinct humans.) I think he fell for Princess Bubblegum because she was almost as human as you can get: Half-human infused with bubblegum particles. It still makes me wonder why she loves science so much. She must be human on the inside, everything else made of bubblegum. But, I'm off topic. Do you think Bubblegum is gone for good? Or do you think Finn will come running right back to her when (or if) Fire Princess doesn't work out?