I really think that when a guy likes you or more rather wants you to really like him, he'll clean up the place before you come. I have seen guys who never clean do it.
Oh man, my ex got worse as time went on. I called myself going over to his apartment to cook, and it was a freaking filthy mess!!!!
Too make matters worse, he invited one of his friends who lived downstairs in! I was soooooo embarrassed. He probably thought I was sleeping with this filthy pig of a man!
I would ask him if he was embarrassed to let people see his place, and of course he was not!