"You're On My To-Do List"

You're on my to-do list -
Are you not thrilled?
Not everyone gets so billed.
Surely, with luck, you've been kissed.

You're on my to-do list,
For good or for ill.
Not at the top but don't shrill -
rest assured, you shan't be missed.

You're on my to-do list.
For you, have I used the quill
To write what my brain has milled -
Finished with some flicks of the wrist.

And now, you're off my list.
I've used my not considerable skill
To do that which you willed.
Now, I'm off for a tryst.

How's that for a twist ;)