I’m not being very sympathetic.
We are both shattered, like all new parents I guess.
When we first got the baby home a couple of weeks ago, he was quite chilled (the baby was, and to an extent DH was too) he thought things were easy! Unfortunately DS hasn’t slept well at night, he’s a bit nocturnal- he’ll do 90 min stretches just 3x throughout the night so you can’t get a proper sleep. During the day he was fabulous at napping initially but he’s not great at the moment, he gets bad wind after a feed, gets uncomfortable and needs about an hour of comforting/winding.
‘I didn’t think it would be like this’ said DH yesterday 
I think I cope better on the back of a night of no sleep so I’ve been doing the night shift, in the spare room with the baby, and trying to grab a few hours nap in the day, DH still has another week off work, but last night I’d had enough, I was dead on my feet, so I expressed some milk and handed over to DH.
I’ve just been into the bedroom to find DS sleeping peacefully, and DH practically rocking in a corner, ashen faced, like he has experienced a terrible and traumatic event.
I asked how he got on. ‘Not good’, he replied in shaky voice. I’ve got the baby now and he’s gone back to bed, in a strop, because I reminded him that it sounded like an entirely normal night to me.
AIBU (and possibly a bit of a martyr ?!)
But I wonder if DH pictured having a tiny baby as like having an agreeable little cat curled up in a corner, waking up for the odd feed and cuddle, letting us watch a box set of an evening and share a bottle of chianti.