Loosen the Bottle Cap Half a Turn

On the day of their reunion in their senior year of high school, he pointed out a seat to her and said the light was too bright. She sat down. She waited for him for three years, waiting for him to complete the steps. He stopped halfway and threw "I like you" in the back row of the classroom three years ago. Later she sat next to someone else. He just started running forward. He started to run forward, and as he ran, he realized that what he wanted to reach was no longer the beam of light. She waited for him for three years, and it took him three years to walk up the steps. The bottle cap was unscrewed half a turn, and then no one tightened it again.