!

I think I might know what it is!

Avoidance.

My brain uses writing the script as an avoidance technique from actually dealing with the subject matter in person. My writer's block is a way of avoiding dealing with the question altogether. I'm not in a TV/movie mood, or sleeping mood, or going out mood. I'm in a writing mood, and my brain does not want to write. Therefore I have to assume it's the subject material that I'm running from.

The end.