Convenience

In this day and age a marriage of convenience could work well. They could lead separate lives in private, as long as they ensured they were seen together in public. Simple. He knew he didn't love her. He knew she didn't love him. The marriage was temporary. The grandparents might not know that, but David had read her eyes and knew, that she like him had the divorce card available and had no qualms should the time come to use it. That was the time.