Cruelty by wife and inlaws

Its been 16 years of our marriage and my son is around 14 years old. I got married to daughter of single parent 16 years ago that is My mother in law left her husband and living with their kids one son and daughter whom i got married to. There condition was hand to mouth like 16 years ago and My mother in law was living on sympathy of her brother.Inf act Kanyadan was also done by her Mamaji and MammiJi.Not that because she was single fact is she is dumb and dont know about realeationship. There were no issues for the initial 12-14 years. But in the meantime Time changes and her brother just managed to become Col,from no where to col means a lot to them.He got married too.But on the other hand i took some loans and got into debt because of heavy losses and there are some financial crisis still we can say that. My wife and in laws took a great advantage of this situation and started feeding ger negative things.my mother also got expired in 2011.in the meantime they started building up equations how to take control of the house.In the process he moved my father from his room to the backyard room on the instructions given by her brother and Mother. since past 4 years she has no feelings for me.she has also kicked me out from my own room so many times.She has many time jump to the neighbor floors and often goes to neighbor house to create a scene.Thats not all it turns so ugly when she called up police at home and lodged the false complaint against me.Then in the evening she took it back on her brother instructions. She hardly works at home.She is not into family anymore.One more thing her brother calls him up every weekend when most of the time her own wife is not there. She also joined soka gaki some bhudism orogramme and she is busy with that all the time,.Visits other premises late evening and to guys also around 8 or 9 in the evening who are just 18 0r 19 years old and chanting for fun and my wife used to enjoy their company. Her brother has advised her to wear short dresses and he used to enter her room when she was breatfeeding.As the result she is sharing inappropiate photos on whats or face book and its open for all. I cant take the bold decision and get separated like her mother does and now she wants to because of my son.Hence Pl advise