Couples often assume that love is self-sustaining. The truth is you have to invest in it, or it will die.
When Jean and I first started dating, I lived in San Diego, and she lived in Orange County. At the time, she was working evenings at a veterinary clinic, so I occasionally drove 90 miles to bring her dinner. I was willing to inconvenience myself to show my interest.
Fast forward to the early years of our marriage, and my attitude changed.