Marble Pie and Big Mac had only ever met once. In the beginning, she wasn't sure if she felt anything for him or not, but by the time the big red stallion had to leave, Marble Pie knew that he was somepony special. There was something about him that just made her blush, whether it was his strangely charming clumsiness due to his size, his short but expressive one word answers, or something else she couldn't consciously see. All she knew was that she wanted to see him again.
When Marble Pie heard that her family would be the ones visiting the Apples this Hearth's Warming, she decided she was going to was going to confess no matter what it took. But when she saw Big Mac kissing that beautiful pink pony, she knew her chance was gone. Heartbroken, she begins to close herself off as she tries to figure out how to deal with the pain. Fortunately her eldest sister, Limestone Pie, knows all about dealing with harsh feelings.