Concern
After greeting the dog again and giving it a little more love, Theresa had to get onto her next flight. She said goodbye to the pooch and boarded her plane. This time she did think of the dog. She was concerned about it.
The dog never left her mind. Even after a month, she still thought about it all alone outside the airport. But she had a busy job, so she had to keep moving forward until her job brought her right back to the same airport.