Answer:
That statement is false
Step-by-step explanation:
Model of relationships suggests that Commitment in relationship tend to last longer when each partners accepted all positive and negative attributes that each other have (both physically and psychologically).
Dana and Tyler relationships do not possess this attribute. They Do not stray from each other only because neither finds anyone more attractive than they find each other. There is a huge risk in Dana and Tyler's relationship because their commitment could easily broke apart if any of them suddenly encounter a more attractive person than their current partner in the future.