My (36m) girlfriend (29f) is on her third day of the silent treatment. The reason, finally confronting her shitty behaviour. 

My girlfriend likes to start arguments. It wasn't a huge issue because we lived separately, but circumstances have forced us to live together. The current issue is that we argued because there was fish in the fridge that was two days out of date (now four).

(These aren't word for word but the best of my recollection) 

Me: Well, whoever cooks it best, just give it a sniff test

Her: You're so picky

Me: What, it's 2 day old fish

Her: You have an issue with anything out of date

(There was further back and forth here which I forget)

Me: It's fish, I don't see what the issue is, what's the problem with giving two day old fish a sniff to see if it's okay?

Her: That's no reason to bin it

Me: I didn't say bin it, I said sniff it, why do you always do this, why do you have to turn everything into an argument**

Her: I don't, are we arguing now?

Me: Yes

Now I've had the silent treatment for three days. I put the * in the because in the last few weeks, I've dealt with her complaining that I listen to podcasts, YouTube, and music, and she’s sick of hearing it all. So when I'm tired of having headphones/earphones in, I shut the door to the room I'm in, and she then complains that I shut the door. 

She complains about the smell when I cook something, so I open the window. She then complains that the window is open.  

We’ve not been intimate since Valentine's Day, and she complains about that. I suggest she can always make a move on me, but she still hasn’t. She still complains about the lack of action, though (I'd like to point out in the almost ten years we've been together, she's initiated sex, maybe ten times). 

**This is also there because when we do argue, and I explain my position, and I can't understand why we're arguing, she pauses and changes the reason why we're arguing. For example, in this instance, she complained that I suggested sniffing it, then she moved to "that's no reason to bin it," which I never said. 

Just the other day, we argued about painkillers because my shoulder hurt. 

Her: have you taken any painkillers?

Me: Yeah, I took some ibuprofen

Her: That's not a pain killer

Me: Yes it is

Her: No it's not

Me: Yes it is [ gfs name]

Her: No it's not, that's why you can take ibuprofen and painkillers at the same time, because it isn't one.

Me: [gfs name], it's a pain killer.

Her: No it's not, it's an anti-inflammatory

Me: It's also a pain killer

Her: (Turns to cat) Some people just don't want to accept help

 At this point, I'd like to point out that ibuprofen's packaging calls it a painkiller. 

 When I'm in the wrong, I acknowledge it and apologise. She still goes on about what I did, so I'll apologise again. She'll bring it up again, and I'll apologise again. I'm just so tired at this point.

So, AITA for finally asking why everything has to be an argument/cause for drama?