Most Helpful Guy
I would put my foot down, if he doesn't respect you in a relationship and feel your getting in the way it's because he cares so less to prioritise other things over you, I would drop him if he cares so much about going to shagaluf.
Most Helpful Girl
Why in the fuck are you still together with a cheater?
He wants to go on a lads holiday, because he can get some tail, DUH. That's the sole purpose of a lads holiday.
Dump him, then he's free to fuck off wherever he wants.