I wrote to my ex-wife last week. She was very civilized about it.

上个星期我写信给我的前妻。对此她表现得彬彬有礼。

《柯林斯英汉双解大词典》

The children are spending the weekend with my ex and his new wife.

孩子们与我的前夫及其新夫人在一起度周末。

《牛津词典》

My ex-wife is bleeding me for every penny I have.

我的前妻不断地榨取我的每一分钱。

《牛津词典》

My wife and I currently have an arrangement through the CSA to obtain maintenance payments from my wife's ex-husband.

BBC: Parents face fees for child maintenance rulings

I'm dating my ex-wife.

CNN: O.J. Simpson Profile: The Adult Years