Need some help, opinions.

Hello Fellow FABONITES,
I need some help, and Opinions. First a little about me, I'm 61 years oooold, back in the 80's I was broad sided by a truck who ran a red light, I was driving a Ford Courier pick up, and it messed my back up bad. Fast forward to twenty-two years ago, I couldn't work any more. I finally received disability nine years ago, Mo is also on disability from Cancer 20 years ago. I finally got a Spine pain stimulator surgically put in my back a month ago and it is working well. I met Maureen (Mo) back in 1985, she was Married and came from England and had one kid, I was Married and had two kids. During that time we were both divorced, I walked into a bar 24 years ago and she was sitting all alone, Friends said stay away she is pissed-off, so I asked to set with her, we went home together that night and it has been pure joy up until six or so months ago. Mo had a stroke November 4 2017, It only seemed to affect her left arm the worst. She had Physical Therapy people come two our home 2 times a week for 3 months too help with her arm and test her motor and brain functions, She did great, after the three months she did her exercises off and on, after a year I tried my best to get her out of her chair and exercise, it didn't go so well and 6 months ago she stated telling me to get f**ked, I hate you, wish I never met you and get out, quit nagging me and every thing under the sun. She said I can do every thing while she just sets there watching. The worst thing she said is I give up, I quit, I'm never doing another thing again, I'm just going to sit here and be lazy. I want you folks to know all I ever wanted to do was help her. That lasted about 3 months, we talk now but the damage is done, Mo tells me I know what I have to do to get better but I just don't want to, I want to drive again and do normal things like help me but I just don't want to? Mo tells me she knows she can get better but just doesn't care? Well here is the big question. I'm going to leave her, her daughter and grown up boys live here in town and I hope they will take care of her, her daughter did desert her shortly after she came home and her Grandsons rarely come buy. Zach her oldest grandson is coming here this Saturday to talk about it. I talked to him on the phone and it went real well, I reminded him that years ago I told him I would never leave his Nana Mo and keep her safe and well, I told him that is a promise I may have to brake, he understood, but I feel like a total D-Bag. But maybe the change will get her to snap out of it and get her to getting better. I feel guilty as ****, will I be abandoning her? My point is that she knows she can get better but she just wants a servant to do everything. My Awesome son and his wife already have a room for me. Please give your honest opinions I need help. Sorry this is so long. Thank You for all and any help. If her family won't take her, I will stay.

Jeff