What does it mean if a guy is always worried about your height? I've been friends with this guy for several years and he's never mentioned this before when I was dating someone. Now that I am not dating anyone, he's always checking out my shoes and bringing up the fact that I'm taller than him. He said it makes him uncomfortable.

Why all the sudden is my height an issue? If he is only thinks of you as a friend would this bother him or is it something that I guy worries about only if they are romatically interested in you?