My advice is to run away from her. I had a girl's mom say the exact same thing to me when I was only 16. Her mother wanted me to marry her because i'm from a wealthy family from Dubai and she wanted her daughter to marry into my family to the point where the mother would come to my high school and literally try and take me out to "coffee" so that i could hang out with her daughter. You have a good life going for you (as you said) and have a good salary at a young age. Don't risk your financial freedom just to save a woman who isn't the same woman you fell in love with. Everything you mentioned are red flags. From asking you when you're going to get married, to gaining 40 pounds, refusing to work anymore, as well as being physically violent with you? you're literally asking for a life of misery and getting divorce raped down the line. Do the smart thing and save yourself while you're still in a better position than the majority of people out there. Don't settle for an overweight lazy woman.