i'm going to sit on the fence here.
if i'd been 'having fun' for a straight 48 hours with 18mo twins, i'd be pretty much as knackered as someone who was out all day - it's a different kind of exhaustion (and i've routinely worked 12 hour shifts and nights in the past).
and i know that if i've had kids home all weekend, and no help at all, my own housekeeping falls completely by the wayside. and i really appreciat help from any passing worker bee.
i've also been the worker coming home and finding the house a tip, but the kids happy, or conversely, the kids whining and causing mayhem becasue they've been ignored for the sake of the dishes/ laundry/ vaccuuming.
having 18 mo twins and a clean house is sometimes not going to be possible.
instead of picking fights over who made the mess, and who gets to clean it up, maybe just both pitch in and get it done next time.
i mean, this issue isn't going to go away overnight. i assume you are noramlly both there at the weekends to keep up with it, and the dt's are at childcare during the week, so this weekend was an out of the prdinary learning curve for both of you.
don't make a mountain out of a molehill. he looked after the kids and kept them happy and safe. and he didn't have time to clear the sides. no biggie. if the shoe had been on the other foot, you would probably have been on here saying he'd been at work all weekend and left you with the kids, and you were exhausted, and he expected the house to be clean when he got home.
sometimes you have to quite moaning and both get on with it. having small children and working is knackering, whichever duty you happen to be on at the time.