Look basically he was gaming you
 

Sure he had his cock down another cocksuckers mouth, no female, cum and run..
Suck his cock, get what you want, now the game is reversed
suck his cock like your life depended on it and be sure to keep the cum in your mouth even if you dont swallow
H'ell be back
You basically can say his balls are in your court.
ENJOY, don't feel guilty...he didn't when he was throwing cock to another man's throat.