I've noticed that I seem to go off DP every month, for the week before my period, as though it's part of PMT.
I get moodier, more irritable, sore boobs, cramps, a bit edgy/paranoid, etc, before my period - nothing unusual about that I don't think. But I'm beginning to wonder if actually feeling a bit sometimes quite a lot hostile towards your partner is normal too, or if it's just me. 
We have our stresses and strains like everyone, but most of the time seem to potter along pretty contentedly - and then predictably, a week before I'm due on, he can't do anything right, I'm questioning our relationship, we argue, I don't want him in the same bed ... God, I feel awful just writing that. But it is how I seem to feel most months; for a week or so, our relationship feels like Hard Work. It's like I see it through totally different eyes, and wonder if I should even be with him.
And then usually within a day or so of coming on, I feel OK about him again. 
Can hormones really influence perception this much? And if so, why would our hormones have us go off our mates and destabilise our families every month?! Maybe it's just me. 
I feel guilty about my behaviour towards DP. I feel confused by my changing feelings most months and about how much my perception must be out versus how much DP is genuinely being irritating/unreasonable/whatever. And I wonder if anyone else can relate to this, and if there's anything we can do about it. (I bloody hope so, otherwise what will the hormonal upheaval of menopause be like for poor DP?!)
Any thoughts? Thanks.