<human>: Can you condense the text into a few key points?

Hi, I can't sleep and I need advice

The last 12-10 hours have not been easy for me. My girlfriend slapped me in the face for adding a female friend on Facebook. This girl and my girlfriend have some sort of problem with each other. I did not know and she hit me in my face three times. 

She left me alone in the mall. 10 minutes after my girlfriend left me, a girl walked up to me and gave me her number and told me to call her. She looked 17 or 19. My girlfriend is trying to apologise to me and I don't know what to do.  The girl who gave me here number is attractive. 

Do I try to talk to my girlfriend or do I call this girl?
<bot>: Girlfriend hit me in public, a girl gave me her number, do I try to talk to my girlfriend or call this new girl and break up with GF.