Looking for a fight.

I swear my other half is always looking for an argument with me most days. Something small turns into a childish debate. It's hard to talk to someone acting like that. He's going away for the weekend soon, I hope this isn't some way of not feeling so guilty about going away without me. It's a lads thing. I wasn't overly keen on the idea because I know what he's like around that lot! How would you talk to him?