I find I get a bit funny about DP going out. Mainly because I can't usually afford to go out, and I know that really, he can't either, or else he should be helping me out. But, to be fair, he dosen't go out often. Both working shifts the opportunity rarely arrives (I think the xmas do will be my first night out without DP since July!).
What I find difficult is for it just to be 'sprung' on me. I will have planned the meal etc, and it wasn't unheard of for him to ring at about 5/6 and check if it was ok to go out that night for 'a' drink. This was the other problem, it never stopped at that.
He went out last night, for the footie. He did, admittedly, phone at about 6.30 on monday to see if he could go out for 'one' that evening, but supper was already on, and he happily accepted it wasn't the right time. I tried to make an effort to make sure he arranged another night. And he did He freely admitted that the 'one' wouldn't just be one, if he had gone out that evening.
So basically, I say that I have to plan when I go out for an evening, and I expect the same in return. He is always very good at 'letting' me go out though, moans I don't enough actually, so with our 'one day's notice plan' I hope that we will be able to row about it less!
I think you need to really make sure your DH is very clear about what he is doing on which nights so you can plan your life too.