Also consider this Olebass,
You mentioned that she has applied for disability but was initially declined. Who is to say that she isn't just using you for a free place to live until she gets approved, has some income on her own, and can then leave? If you are this unhappy, she can't be blissfully happy herself. She may not be as unhappy as you are, but she definitely doesn't think everything is great.
The reason I say that is that I had that exact thing happen to me when I was younger(but on a smaller time scale). Started dating a girl, we both had decent jobs. After 6 months we moved in together(her apartment at the time, my lease was up, hers wasn't), then 6 months after that we moved to a bigger townhome. Well, at that point she got sick(started getting migraines daily) to the point that she couldn't work. After months of testing, no one could figure anything out, but she was not working and I was supporting us both. She applied for disability at this point, and surprisingly got approved about 6-8 months later. Of course through all of this, our relationship was a trainwreck, she was depressed and sick all the time, I was working my ass off to support us both in a lease that I really couldn't afford on just my 1 income at the time. It got to the point that we were those people who had to write a check at the gas station because we knew it would take a few days to process and we had zero money at the end of the month. We were BROKE.
Well, once her disability started coming in(we'd been together about 2 years at that point), money wasn't quite so tight, but she still wasn't working(and was blowing a lot of her disability money on pot, under the guise of it helping with her migraines). Fast forward 6 months and come to find out that all that spare time she had sitting at home, she had been cheating on me since she had started getting money again and could afford to put gas in her car and run around town. I didn't find out until I found naked pics on her PC that she had been emailing to a few different guys that she was chatting with online. Kicked her to the curb, she had to move back home with her parents at the age of 26(they weren't too thrilled), and I've never spoken to her since.
Out of those roughly 3 years total, the first year was amazing and the last 2 were pure hell. I don't know why I stuck it out as long as I did, just young and dumb I guess, and I felt like I was doing the right/manly thing, supporting her in her time of need, blah blah blah. All it did was allow her to completely stab me in the back.
The only little bit of revenge/satisfaction I got back was after she moved out, she forgot to change her disability social security check to not auto-deposit into our joint checking account(she had horrid credit and couldn't get a bank account of her own, so I had to be on it with her, I had my own separate accounts all along). So I saw that the day it deposited, I immediately transferred the $1500 or whatever to my own personal checking account, and closed the account down. Got several mean voice mails from her, and her mom even had the nerve to call me at my place of work and bitch me out, but I didn't give a fuck. I kept it.
