Answer:
Cohabitation
Explanation:
In psychology, cohabitation refers to what happens when two people who are romantically involved choose to live together without making the formal commitment of marriage.
Cohabiting has some pros, for example, the couple that decides to cohabit can learn about each other before they marry. They also may use information learned during the cohabitation period to learn that they do not wish to marry at all. They also share expenses while cohabiting and when they already have sons of daughters of their own they form an extended family by deciding to cohabit.
In this example, Donna and Mark become engaged and live together, however, although they are strongly committed to one another, they decide not to get married. Since they are still romantically involved and still live together, this would be an example of cohabitation.
