The Breaking Of Two Important Rules

Fionna is sick and tired of the rules Cake likes to set up for her. She feels trapped, like a child in their play pins. Maybe breaking just a few wouldn't hurt... But breaking the rule of "Don't go near Marshall when I'm not around" went a little too far, when she finds love that no one would approve of. What about Dan, what happens when they meet again? What if Dan still wants to get married? How could she possibally make it through this one?