connubial;  conjugal;  marital;  married;  spousal
Connubial/conjugal/married life
Marital disharmony
man and wife;  husband and wife
Are they husband and wife?
There must be a certain amount of give and take between husband and wife
Mr and Mrs Bertier are very fond of Vietnamese food;  Mr and Mrs Bertier enjoy Vietnamese food very much
To set up house together;  to live (together) as husband and wife/as man and wife
An unmarried couple