Have NCed for this.
Mostly just need to vent, but also get a bit of perspective on the situation.
I feel like with my DP everything I say is a constant battle. Just a small example, this eve before putting DD to bed I noticed that her pyjamas and vest were wet from dribbling. I sighed a bit and said 'This is soaking, I'm going to have to change her', DP comes over and feels and says 'It'll be okay'. I basically said that she needed changing as I didn't want her chest to get cold and for her to get ill again (she was in hospital 2 weeks ago). Inexplicably he then gets a huff on asking me why I've got to make an issue out of everything, etc. V. Taken aback. Yes, maybe I sighed a bit deeply at the prospect of stripping her off again and redressing when I've had her on my own all day, done all meals and nappy changes, etc.
Further to this, I hopped in the shower once DD had gone to bed, and when I came out he was asleep on the sofa. I walked into the kitchen and he asked if I wanted help with anything. I gestured towards the kitchen and laughed (it was a bit of a bomb site post dinner and washing up hadn't been done from last night either). He goes off again asking why I'm causing an argument??? My back is up at this point and I point out that had he finished the washing up last night there would only be 4/5 pots max to wash now and I'd happily do it. But the fact that he didn't made the job a much less appealing prospect. He then spent the best part of 15 minutes arguing that the pots weren't there last night (they certainly were) and the only thing he'd left was a saucepan to soak 
For a bit of context, we both work FT. He works shifts and I work Mon-Fri. Often because of his shift pattern I take DD to nursery, pick her up, bathe her, feed her, clean the house, cook, shop and wash clothes. He often has two days off in the week where he has DD, on these days he stretches to breakfast for DD and then will make sure they are out and about for lunch, or put together something I prepared earlier, and I will make dinner when I get home from work. Never has he washed up/cleaned up without being promoted (and it's usually when I am at breaking point like today where I've been ill!). I feel like I spend most of my weekends cleaning and washing rather being able to go out gallivanting with DD.
And this isn't what gets me the most! What irritates me the most is that he will honest to goodness argue the exact opposite of absolutely anything I say. Regardless of whether it's fact or not - just to be contrary. And it makes me feel like I'm going crazy!