Phoenix20, there is nothing wrong waiting for a maybe or even a no.
It all depends how much you like someone. Sometimes waiting that extra mile pans out sometimes it doesn't.
As I said before, time is relative to how much you hope to hook up with someone.
Everyone has the ideal wish list in their mind on what they want in a partner. That is what is called a unicorn. Depending on how many boxes they tick on that wish list, will ultimately determine how long you willing to wait. You may not even realise it that you are waiting if in your mind they appear to be close to the perfect match.