Girls usually just go for it if they like you.
Got one friend who is being put through a lenghty audition process, another who is buying into the "not ready for another relationship yet" line, and one whose beau hasn't wanted to see him in-person for five months. And I'm a bad guy for pointing out the obvious.
Everyone likes to think their situation is totally unique, but it's usually a matter of one person not liking the other. Occam's razor, people.