Who Would Do Such A Thing?

The Writing on the Wall....er, Door.
Originally uploaded by Oblivia.

The first thing that came to mind when I saw this on my front door yesterday was the fact that I lied about being "in love" last Saturday. I don't usually lie about these things because a) you usually want to fill the void as quickly as possible and it tends to fill up with the truth, and b) a lie usually has to be followed by more lies and thus tends to be the path of most resistance. I was in avoidance mode and I was feeling unwell and slightly weak.

I think its crayon. What is this? Who? What? Why?