What A Mess This Is.....

I married this girl, I feel in love with. But deep inside I knew better. She was a self centered kind of girl. And as the time has gone by it really stands out now. I have heard "Get the "F" out of my car!" so many times and "Get out of my house" on top of that. Even though she has not done it in awhile, it still sticks in you like a needle. I recently had back surgery, been off work for about 3 weeks now I think. First night home, she was pretty helpful, but when I was going in for surgery, she had her class books all spread out doing home work. She didn't like the nurses, no big surprise there. She doesn't like anybody if they look better than her. So I had the surgery, she goes home while I stay over night. I go home and she is really good about getting up with me the first night. It changed the next night, I couldn't sleep on my right side due to where that is where the cut was. So I try to sleep on her side, I got asked to move, cause she can't see the tv. So at stopped bothering her to help me at night, till the next night I took laxitive becuase, I hadn't gone in thee days. I am on my side of the bed and I can't get up cuase it hurts, sleeping on my right side..... She gets up to help me, runs down the hall sits on the toilet and starts to pee. I am standing there, holding it in best I can, and she starts telling how all the food I am eating is stopping me up. So, I can't stand it anymore and walk upstairs to use the bathroom, and she gets mad cause I do and goes back to bed. I sat there for 30 minutes trying to get up off there and yelled for her. I finally got myself up, and came down stairs and I asked her... "Do you really not care?" Turned into an argument of course, so since then, I have been pretty much been at home by myself. I make my own meals, bath myself, running out of food, so I guess I will have to go to the store myself. Now I love kids, but with what was going on, I thought we agreed to let her kids stay at their dads an extra day. She had them come home 2 days after my surgery, and they came in running, screaming, and then she was yelling at them, and they left. Now with other event's that has happened, she threw her ring I bought her, lost it. And told me that I could buy her another one. A bigger one. For my reward of how I had been acting towards her. She comes in, wakes me up drastically... to where I about fly out of the bad, and gets mad at me cause I say.."why do you keep waking me like that?" She gets mad, says whatever amd leaves and says bye, and walks out the door. Now I know I have been a bit of a bear being on the steroids, but am I imagining things to see that this woman only cares about herself?? All I hear from her is I want, I want, I want on how she wants things.... it's never how would "we" like to do this, it's always her...........  and we haven't even been married a year yet. Probably wont make it either.....