Well, what were you doing last night? Did he do half the washing up at midnight, after you'd gone to bed? Were you both up in the night with a sick kid? Presumably he was off back out to work this morning?
Having spent an inordinate amount of time at home 'writing' and looking after kids, chores turned me into a lunatic. But in my more reasonable moments when everyone is knackered and fed up, sometimes half is as good as it gets.
For example, dh has been away all week. I have only done half of the washing up. Bite me. I've been at work all day and I'm tired, and I'm getting a migraine. It's quite likely that dh will do the other half in the morning when he gets home. I'm out again all day tomorrow at a training session - he'll be at home with the kids (and doubtless working on the computer).
It's not a competition. It's a relationship. All this crap about cooking half his tea and serving it on a half dirty plate - really? He didn't rip a child's head off or shag someone else - he did half of the washing up. Sure, it's a pita, but it's hardly worth getting petty over.
Mostly when I get like this it's because I know I should have done it, really
and am cross because dh didn't, so I'm going to have to do it anyway. I'm lolling that the state of your kitchen is a surprise to you - it must have been that way when you left it expecting dh to do it - same as he's doing to you now 
I know my kitchen is a tip (and the rest of the house). Sure I'll bitch about no one else tidying. But I'm not either. 