Oh my glob...I see where this is going...If PD uses the potion, Finn will forget EVERYTHING that happened between them but if she doesn't, he'll forget all the amazing things he's done...forever. If she loves him, she'll do it. If she doesn't, she's only thinking of herself.
well when you play video games, watch anime, and read manga like me you tend to find out the storyline at the BEGINNING of the ENTIRE story...I can't help it...it's a curse ._. But I like the story...KEEP UP THE GOOD WORK!