That's how I feel right now.
I woke up too late to take my friend to the airport this morning. And yesterday I was half an hour late to my coffee date with some friends.
I've become unreliable.
There's an episode of Gilmore Girls like this:
CHRISTOPHER: Where were you?(There's an episode of Gilmore Girls for everything.)
LORELAI: Fruitlessly trying to rectify a ratty transgression.
CHRISTOPHER: Oh. You want some coffee?
CHRISTOPHER: Well, I know you well enough to know that when you say no to coffee, especially in the morning, all is not right in Whoville.
LORELAI: Very astute.