I have going out nearly 4 times a week for the past 2 months meeting girls. 10 days ago i met a HB9 and had an amazing time with her and i got number and she even initiated the number close which at the time i thought it was great.
I called to ask her out last week but she said she was busy at work and she stayed at the office until 1 am. we kept texting then i asked her out again and she gave me the same excuse.
when i first met her she told me that she work 12-14 hours a day (she works in advertising)
i havent felt chemistry towards another human being like the way i felt with her for a while....should i keep pursuing her or should i move on?

I don't know that this applies exactly to your situation but there is something I find a lot of guys don't know about women. And that is you will eventually get what I like to call the psycho test. Every woman I have ever met does this at some point early on in the relationship. They purposely ignore you for a short time(like a day or two). It is a test! They want to see if you will over pursue or act like a psycho in any way shape or form. Best thing is to get your mind off it and wait for her to reinitiate contact. Personally I would leave a message and then let it go completely. Don't worry, if she likes you she will call.

Well, it's obvious she values her work more than she values you.

I don't think that's a healthy footing for any sort of relationship.

Find someone who's not a workaholic and can actually, take out time for you in her daily schedule.

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" You're born alone and you die alone and this world just drops a bunch of rules on top of you to make you forget those facts. But I never forget. I'm living like there's no tomorrow, because there isn't one. "