Women are smart my friend.
She knows you're into her and she doesn't want to seem like you have easy access.
My advice is simple, you took the initiative to make the first attempt after she didn't respond. That's all it takes. The ball is in her court. So leave it at that and flat out move on.
If (and more than likely when) she gets back to you and gives you some lame excuse such as not getting your text message or you selling out, do not bite into that trap. Play it off like you tried to get a hold of her but it was no worries and what ever you do, do not jump into getting into another date at that moment.
Let her instigate the next hook up. Then you will consider it and choose to except it.
If this does not happen. Drop her or put her on the back burner and move on.
D.
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When it came to dating I was a slow starter, that's why I can relate to so many and that's why I'm here.
Guys in this day in age need all the help they can get.
My Blog on which dating systems work:
http://datingguidesthatwork.blogspot.com