Answer:
Novelty-predictability
Step-by-step explanation:
In relationships, dialectical tensions can lead to difficulties in the interaction between partners. When it comes to a healthy relationship, both partners should be able to find a balance to fulfill each other’s needs.
Novelty-predictability refers to a type of tension that occurs when one partner seeks a level of novelty and excitement in the relationship while the other prefers a routine or predictable activities.
In this case, Ellen seems to enjoy the predictability of the relationship, that is, renting a movie and watching a film once a month; whereas Bill's boredom could mean that he is seeking for more novelty and excitement which could be achieved by changing the routine. This leads to the tension of novelty vs predictability in their relationship.