What is half past 12?

Half-past twelve I was all alone
I can't be compromised
Fuckin' on my ex, we ain't apologize
'Cause I'm way too young and you always right
Threw it in my face, I'm on another flight
Girl at home, I ain't been living right
The little arguments always start the fight
I had to get away so I'm with you tonight
Is there another guy?