Postpartum depression or.....?

Sat here watching my partner play COD, me on my phone... same routine everyday since we had our baby 3 months ago.

I'm starting to resent him, he's lack of anything, I've tried explaining it to him but he says I complain about everything. Maybe he is right, maybe not. I'm so aware of possible depression that I am finding it hard to separate my feelings as either normal or not normal and he fuels this when he says things like "all you want is an arguement", in my mind I'm just talking so then I start over thinking about if I was argumentative when I spoke, am I picking at him? Am I being irrational?

Or has he just become lazy in our relationship and everything we once had has simply gone? Maybe I was more patient before we had our daughter?

I need to return to work my mind feel cloudy, I just want to be mentally well before I return to work in January because I hold our family together, if I crumble all of our children will feel it.