My girlfriend and I have been going through a rough time ever since we moved in together in July, I have decided to end things with her because I just can't take this suffocating feeling anymore, I can never feel relaxed in my own home and feel like I am constantly walking in a mine field with her cause I never know what exactly will make her either flip out in anger and jealousy or burst into tears.  We had this fight a couple days ago and I am just wondering if I am an asshole for what I said to her.

I have been trying really hard to make this relationship work, I told her I need some space and that I still care about her immensely, but that for the relationship to work, we also have to take care of ourselves.  She proceeded to bawl and say how since we are together, she should be the only person I don't need any space away from.  Eventually I talk her into going to couples counseling with me and the therapist suggested that we should schedule some time to ourselves, pick an activity and do it alone.  She decided on going to a coffee shop and relax with a book.  I decided on picking up a new PS4 game and hanging at home playing it and ordering a pizza.  The day comes for our scheduled solo activities and as she is about to leave, I boot up the game, Tales of Berseria, that I purchased.  The title screen pops up and the main character is dressed like [this](https://vignette.wikia.nocookie.net/aselia/images/e/e1/Velvet_Artwork.jpg/revision/latest?cb=20170226095330).  My girlfriend sees it and goes "uhh why did they dress her like that?' I told her that the style of anime is like that, there's almost always decent amounts of shirtless dudes and scantily clad women.  She gives me a disgusted look, I hit new game and ask her what the big deal was, she doesn't reply because the opening cutscene is playing and it's that same character but in what looks like a prison, wearing only tattered rags.  There's no full on nudity or anything, she's just not wearing much.  My girlfriend says more sternly "FinallyAloneAgain, this is NOT okay.  I don't want you playing this."  Now I was aware she was the jealous type, she even admits to it, but it was never anything over the top.  I had no clue she would find anything wrong with an animated videogame.  She watches the Bachelor show where it's a bunch of dudes and girls on a beach and pretty much the entire time the guys are shirtless and the women are in bikinis.  I ask her what the difference is between that and my game, and her reasoning was that the game lasts for several hours whereas her show is only one hour.  As she continues to rant about how she doesn't want me seeing that and how I shouldn't be playing it out of respect for her, I about lost it.  

I was SO excited to finally have some relaxing time to myself and now she is even making that impossible.  After she rambles on about how gross it is and how disrespectful both me and the game developers are I say to her "it's kind of odd you have an issue with scantily clad cartoon characters, but you are totally cool with talking to some random guy at a party you've never met before and having his dick in your mouth less than an hour later, don't you think?"  See, my girlfriend was big into hook ups in college (she graduated last year), personally it's not my thing, I find it super awkward and uncomfortable.  I've had one and that was all I needed to know that I didn't like it personally.  Her fantastic response was "I told you I never sucked dick when I was hooking up with guys" to which I replied "Oh sorry about that, let me rephrase, it's odd that my game crosses a line for you, but getting random dick shoved up your pussy and not even knowing the name of the dude it's attached to is totally cool."  She tells me "that's different, I was just having fun and not being disrespectful to anyone" I replied with "and that's exactly what I am doing, trying to have fun and not be disrespectful."

AITA for saying what I did?  I admit it is out of character for me.  The constant jealousy coming from her all the time and her smothering the shit out of me was bad enough, but then when we were finally going to have some much needed solo time, she finds a reason to be upset and ruin it.  I just couldn't hold back.