Hi there, does your wife want more kids? It sounds to me like she herself is extremely miserable and spending money is making her feel better. She didnt want to get married, not sure if you had love before marriage.? It sounds to me like you can afford to pay at least two rents? Sell the house and pay rent on two apartments. One for you, one for her and child. Take away all money from spending on bags, makeup etc and pay someone to come and help her during week to look after child. If she wants lavish life she can get a job and her family can help with child. You can find someone else, someone who wants more children and your children can love each other as step brothers sisters. Free yourself and her. She’s comfortable in this misery because she has nothing else.