Four.

It was almost four in the morning
You murdered the night with your call.
I was groggy, and I did not understand how
Your purple glow illuminated the room.

Four times, four times again.
This is the fourth time, even when I said
Never again.  Never will you enter this place
But you did, and I

In four times, of four types of despair,
answered in four letters
"what?"
Four weeks ago, we were people.

Four weeks from now,
I see us in a room
sharing a pale purple glow,
and me dying after the fourth call.