I really feel for you. Families at war are awful and illness does tend to bring out the worst in people! Have you managed to have a frank heart to heart with your wife about how you feel? I can't imagine your wife wants to spend the time she has left fighting and arguing and i really think the focus should be on you as a couple with the youngest child. A piece of advice someone once gave to me was that it takes two to have an argument. If the same cycle keeps happening - obviously the way your wife and daughter communicate isn't working so perhaps you could suggest cutting down on contact. Does your daughter have a care worker/counsellor/friends etc? The other children are likely apathetic as they are worn out with it all and no doubt the child that shouts the loudest gets all the attention! Bi-polar or not - there still should be consequences but it won't help if Mum isn't putting down ground rules etc or is shouting and screaming as much as your daughter! I also feel for the little one. This kind of behaviour is emotional abuse and those that are old enough to know better are quite frankly selfish for behaving like this in front of a small child. Have you tried family counselling? Could you go for counselling just to let off steam? When my mother had cancer she was so awful and her marriage so toxic - i ended up having a nervous breakdown. The guilt and obligation kept me trying to resolve things but ultimately no one wanted to change. It's not worth making yourself ill and it's not selfish to admit you feel close to breaking point. Perhaps if you told this to your wife it might make the family realise something needs to be done.

I really feel for you. Families at war are awful and illness does tend to bring out the worst in people! Have you managed to have a frank heart to heart with your wife about how you feel? I can't imagine your wife wants to spend the time she has left fighting and arguing and i really think the focus should be on you as a couple with the youngest child. A piece of advice someone once gave to me was that it takes two to have an argument. If the same cycle keeps happening - obviously the way your wife and daughter communicate isn't working so perhaps you could suggest cutting down on contact. Does your daughter have a care worker/counsellor/friends etc? The other children are likely apathetic as they are worn out with it all and no doubt the child that shouts the loudest gets all the attention! Bi-polar or not - there still should be consequences but it won't help if Mum isn't putting down ground rules etc or is shouting and screaming as much as your daughter! I also feel for the little one. This kind of behaviour is emotional abuse and those that are old enough to know better are quite frankly selfish for behaving like this in front of a small child. Have you tried family counselling? Could you go for counselling just to let off steam? When my mother had cancer she was so awful and her marriage so toxic - i ended up having a nervous breakdown. The guilt and obligation kept me trying to resolve things but ultimately no one wanted to change. It's not worth making yourself ill and it's not selfish to admit you feel close to breaking point. Perhaps if you told this to your wife it might make the family realise something needs to be done.