Yes, my parents are still at it with the low-level shit after over 40 years of wedded 'bliss'. No DV or any form of addiction, no affairs, but... still.
If anyone tries to tackle them about finding healthier ways of doing things, tell them to STFU or tells them it's upsetting to witness/overhear, then they immediately become the tightest-knit couple ever and protest that they adore each other, it doesn't mean anything, it's 'just how they are', whatever. If you then go on to point out that it's not fair on others to have to tolerate it, and upsetting for their adult children as it was when they were kids, you're either laughed at or shouted at for being weird or oversensitive or you're trying to attack them, you're trying to cause a scene, you're the one making things awkward for everyone... Take your pick.
Basically, neither of them seem capable of realising that they should fucking control their tantrums and stress, much less why they should.
I am very anxious and have felt depressed since I was about 3 yrs old. This is not an exaggeration. Because we never know what could trigger one of the episodes between my parents or when one would happen (one incident could have them going mental at each other, a subsequent, identical incident could have them laughing happily together and hugging. There's never been any rhyme or reason to it all), both my brother and I are incredibly controlling of every aspect of our lives. Until we met our current, lovely partners, I've always picked EA arseholes and my brother has been dumped for being anxiously controlling (not abusively, just being so stressed that it ended up being controlling). I've never made much of my life for various shitty reasons, but one of them is that I've always had to be so hyper-vigilant that I can see every way an idea might fail, and I have no faith that anyone can be trusted, that they could sustain support, being nice, and so on. I expect everyone to dislike me, treat me badly and let me down, although I hate myself the most.
I feel like I don't know who I am very well; my childhood was spent trying to protect myself emotionally from the hurt, from my brother's bullying, which was clearly a manifestation of their crap at home, be responsible for my mother's feelings, try to be the referee and then listen to both of them slagging the other off to me (roles they forced me into, as the oldest child). That didn't leave much room to just be myself, to feel secure enough to develop myself and above all, that there was never enough time (between the rows and horribleness) to relax and get on with being a child.
The happiest time of my childhood was when I was about 14 and my mum told me she was going to leave my Dad. She went into massive details about how she didn't love him anymore and why, which was awful, but the thought that they wouldn't be together anymore made me so joyous that I didn't care. On the way back from swimming practice, she used to point out a little house for sale that she told me she was going to buy for us when she left him. The house was also on the bus route to and from school and my heart would soar twice a day as we went past.
Of course, she never did leave him. And I started feeling sick and on the verge of tears... No, not twice a day but even more than I did to start off with
The very worst thing, however, is that I can feel myself slipping into her patterns of feeling that so many tiny little things my DP does or doesn't do are an indication that he doesn't love me, nay, that he looks down on me, that I am invisible to me, that he thinks I'm inferior, etc. Just stuff like me asking him to change Ds's nappy whilst I go to the loo and then he hasn't done by the time
I get out (because toddlers are hardly easy to change nappies on!). I keep snapping at him now and then in front of DS and it's like I get into a groove and can't stop. I feel like throwing myself to my knees and shouting, "For the love of God, someone STOP ME!". At least being aware that I must stop is a first step.