Marble Pie’s suffering is of her own design.

I like to think that after enduring her heartbreak in Best Gift Ever, Marble Pie would have accepted that Big Mac and Sugar Belle belonged to one another and moved on. She would have congratulated them on their marriage in “The Big Mac Question”. Even then, Marble Pie would still be close family friends with Big Mac and Sugar Belle and eventually find her own special somepony and a happy ending. Here’s hoping Marble Pie will find her own happy ending in either the comic books or the unconfirmed rumored post-series finale short films.

@Background Pony #5E5E  
heart has nothing to do with feelings

I never cared for MarbleMac… they’re family in some way like… come on now. however i hate SugarMac, i was robbed but then again seasons 7-9 are now confirmed stupid and garbage so i can safely say Cheerimac was a better OP ship and thus continue it in my Head Canon

@Background Pony #16F8  
re

I don’t care. I’m happy Big Mac found a true love. I don’t care one bit for….Pinkie’s sister….

You can see the moment her heart breaks.