Big Mac decided to take a week off the farm due to stress. He and Discord decided it would be fun to make him act pretty "clingy" to somepony. However the head barista at the coffee shop probably isn't in the mood for a new pet...
With King Sombra back in power and ruling over Equestria with an iron hoof, he has taken over the minds of so many ponies and now he has his eyes on a new slave.