First time poster. new relationship problems

[wuballz]

First time poster here, HI ALL

Started dating a girl about 2 month ago. She pretty much went after me and after i started dating her,she seems to be putting us on the fast track to a relationship. Told her mom about me,her friend co-workers.. calling me baby.. etc.

Our work schedules are back to back. I work from 12pm to 8pm and she works from 8pm to 4am.

She would always text me when she wakes up around 5pm and i would text her back when i go on break at work. Then when i get off work,i wait for her to text me when she's on break. Then i would text her back. I would always text her good night.

Last Monday she texted me while i was at work,i didn't text her back because she was at work by the time i got off. During her first break around 820pm ,she texted me,i had forgot to turn my phone ringer on after work so i did not reply right away. I ate dinner and saw her text around 9pm and text her back.
around 10:00pm on her second break she texted me with this:

Monday
Her: (730pm) Im at work now babe. I got the curtains i wanted today.
Me: (900pm) Oh awsome,how do they look?
Her: (about an hour after my text) This sucks.....
me: ?what sucks?
Her: why did it take so long for you to answer my text?
Me: I didn't see it,forgot to turn my cell on after work.
--then nothing for 10min--
her: I have to go back to work TTYL
me: ok,have a good day at work,TTYL
Me: (an hour later)Gonna sleep now g'nite TTYL
Her--no reply---

Tuesday

She didn't text me when she woke up.. i assume she over slept so i didn't text her. Then she went to work and she didn't text me while at work. I started thinking she was too busy or playing some sort of childish game because i took too long to text back last night.

Wednesday: She texted today around 4pm

Her: Hey,how come you didn't text me yesterday?
Me: thought you were busy,what r you doing?
Her nothing,you ready to have dinner tomorrow?
me: yeah,cant wait. Gotta eat with my mom right now though.
her: k see ya babe
Me: (later that night) g'nite
her-- no reply again--

Thursday:
we spent the night together and all seem great.

Friday:
Her: what are you doing?
me: nothing,you want to have dinner or are you going clubbing?
her: im going clubbing but not till 12am
me: oh ok, have fun then. i'm gonna chill at home tonight
her: --no reply--
me: (later that night) good night,call me if you need a ride.
her: --no reply--

Saturday:no text again from her,i didn't text her either

Today around 5pm

her: hey whats up?
Me: hey,just getting up?

Then nothing again..

Is she playing some stupid game where she punishes me by not texting me back? If she is should i dump her? If this is a game or test,is it wrong of me to feel angry? What is she thinking and how should i respond?

I know this was long but thanks for reading all the way though and thanks in advance for all the help.