In laws

I got married in may 2015. It was a love marriage. My in laws were not in favour of this marriage. We live on the 3rd floor and my in-laws live on the 1st. They expect me to serve them bfast lunch n dinner. Initially I tried my best to fulfill their request but it took a toll on my health running up and down from 3rd to 1st floor. I started keeping unwell as their food habits are very different. I lived abroad for 9 years and due to marriage I had to come back. It was a major change for me. My husband's work schedule added pressure on me. So I asked him if he could fix a cylinder for me in our 3rd floor. With much reluctance he did. This didn't go down well with my Mil. Slowly I just made only dinner for in-laws. So my in-laws went and complained to my mother that I don't cook for them at all. I don't look after anything etc etc. My Mil clearly said that their daughter will not do anything, only I have to do everything. I was very offended by this act of theirs. Even after spending time with them and cooking dinner for them and also taking care of the entire 3rd floor, this is what I got to hear. I was very upset. My husband didn't say anything. They have a maid to do their dishes and clean but I'm not allowed to keep any maid. It has become very difficult for me to maintain 2 kitchens. My husband's work schedule is 0630 to 1530 which means he leaves home at 5 in the morning. I prepare his bfast, lunch in the morning. And when his schedule is 1330 to 2230 he comes home by 0000. By the time we sleep it's 0100. So practically it's impossible for me to wake up early and serve bfast to in-laws. They just don't seem to understand at all. Last week, my father in law shouted at me saying that it's close to 2 years of marriage, why I don't serve bfast lunch and dinner to them. I very politely said I can't due to the above stated reason. My Mil started howling and created a scene. My father in law asked both my husband and me to leave the house if we can't live by their rules. My husband tried to pacify his mother and said that do they want him to leave me? Listening to this I got upset and shocked that to keep his parents happy, he can talk of leaving me so easily. We are still in the same house. My husband has left me in my mother's place as we are shifting to the 2 nd floor now. My brother in law and his wife , before settling in UK, also lived in the same house. She never cooked not even a single meal for my in-laws. My mil said that she can't say anything to her as she had doctors and judge in her family. My question is, my different rules for different people in the same house? I have decided not to cook for my in-laws at all now as it's becoming practically impossible for me to handle 2 kitchens. The reason behind 2 kitchens is that my husband's work schedule. Secondly, I'm not allowed to cook as per my wish. My mil counts how many rotis I eat. This is just 1 instance. I'm fed up of the behaviour of my in-laws. They behave civilised in front of my husband, and in his absence I'm nothing but just a free maid. My husband is singing their tune. I want to live with my husband and not his parents anymore. My husband won't agree. But if this continues, we will end in divorce. My mil is still in touch with the girl and her family whom she wanted my husband to marry. Pls advise.