Working a sixty-hour week with only Sunday as your relief is... well, it's less than an ideal life here in Equestria, especially considering how easy everyone else seems to have it.
It's only right that you're entitled to one day of rest and relaxation after a week of sweat and boredom, yes?
Pinkie thinks to seem otherwise, always pestering you about "friends", and all that nonsense. You thought a simple, "No, thank you," would have sufficed.
You abandoned that thought after the first month.