Incredibly, the author, the situation is 1 in 1 like mine. If you read, answer how it ended.

I am 30, a girl of 25, on the verge of collapse, now offended, moved out to live with her mother.
We met and began to live with her mother, where she lived. Naturally, for me it was a temporary option, because. I lived far away from my parents for a long time and got used to making decisions for myself. And her mother was sitting at home at a laptop, on purchased sick leave, and her daughter was busy around the house, cooking, cleaning, taking her to the hospital, and so on. At first I wanted to help, it was a pity, work, they also force me at home. Then her mother decided when, where, why it was necessary to go, there was practically no life of her own. While I was working, they went shopping or somewhere else and always everywhere her mother was the initiator. I'm tired, scandals began, my mother-in-law is offended, expresses her daughter, my daughter tells me that she just helps her and nothing special. I forgot to say that the girl had a son, she was 2 years old at that time. Somehow he persuaded me to rent an apartment and move. Very convenient, our work, garden 5 min. on foot. We didn't get married, although we wanted to. She goes to her mother every other day at least, they call each other every day, then take her to the hospital, then cook, clean, pay utility bills, in general, everything. Everything is complicated by the fact that she, mother, is very ill, and it is really hard for her to do all this now. I'm not against help, but the constant feeling of her mother's presence is tiring. If we quarrel, and she refuses her, then she will quarrel. I stopped talking to my mother-in-law. And the girl communicates and drives as if nothing had happened. I swear, communicate and travel while I'm away. Once they had a fight, he said that she was against going to one place, at the behest of her mother, she went anyway. And so they lived for 2 years, with a double life, it seems that they had their own plans, on the other hand, you know that there is still a mother who is not going to let her go anywhere.
The girl honestly tried to somehow refuse her, but she threw tantrums, a bad daughter, blackmail, threats. Then she stopped, and we fought, often. I also can’t stand her mother, somehow I tried to put up with her, she says that she will buy her a car, despite the fact that we have it so that she has her own, I kind of don’t give a car sometimes. And the girl is tired of everything, but she doesn’t want to leave her mother, and I’m not ready to be the third. The husband is the head of the family and the head of the wife, not the mother, I think so. In short, a vicious circle. And now I think either to leave her with her mother, or to endure, to wait for her to move away from her, but this can be waited all my life, this is education.
I love her very much, so I endure, I came to my mother-in-law to put up, she says it’s my own fault, I left money for them to live. The girl doesn’t communicate with me, she wants to leave, I’m trying to get her back, I’m texting the hater, I’m sorry. But I myself think, is it worth it, or put up with it. I love the girl, although she does not seem to appreciate it much. I also tortured her with scandals, but I was tired of enduring their close union with my mother. My parents help us, they give gifts to the child and her, it’s not enough for me, I don’t mind, her mother didn’t help in any way, but we always owe her, and the girl still doesn’t oppose it. Her mother is not her mother, she adopted her.
Maybe I'm wrong about something, advise if there is a way out, or just leave?