When should I quit?

I just started this new job like a month and a half ago. It’s ok, if you like collections. It is just something temporary until my girlfriend and I move out of state when she graduates (late June). I just got promoted, my new boss seems like a total jerk, the schedule is different, and I haven’t told anyone there that I plan to move. I did not want to tell anyone because I thought they might not have hired me, and I really needed the job.

Anyway, I don’t know if I should just put my two weeks in now or toughen up for the little time I have left. Or should I just tell my new boss I don’t want the promotion and stay where I was where work was easier and less stressful?