I would say about 75% of the time I approach a girl I'm able to get her number (the number is almost always real too) but I would say about 80 to 90% of the time they don't answer when I call or text and never return my message. I'm not a pushy person and I never beg, badger, or in any way bully a girl for her number so that doesn't explain things. If she says no I'm always nice about it and never ask again. I've tried calling and texting first. Waiting a day or a few days and doesn't seem to make a difference.
Anyways I always used to assume the girl was never interested to begin with and was simply too rude or lazy to say "no" or make up an excuse but somewhere in Mystery's book he says something like this can happen if the girl is attracted but you don't build enough rapport and she changes her mind afterwards.
So my question is does this happen to a lot of other guys and is it more likely they're changing their minds or were never interested to begin with?