They were very unhappily married but kept up appearances _________ of their children.
for the sake
a family that consists of two adults, the child or children that they have had together, and one or more children that they have had with previous partners
blended family
someone who manages a home and family instead of earning money from employment
stay-at-home mother
a person's husband or wife
spouse
the act of living with especially someone you are not married to
cohabitation
to live together as a couple without being married
common-law partnerships
a person's children
offspring
complicated details
intricacies
a family consisting of two parents and their children, but not including aunts, uncles, grandparents
nuclear family
the legal right or duty to care for someone or something, especially a child after its parents have separated or died
joint custody