A green light is commonly used as a sign of respect and appreciation for veterans — those who have served in the military.
This became especially popular after Walmart’s “Greenlight A Vet” campaign launched in 2015, encouraging Americans to turn on a green light to recognize the service of U.S. military veterans.
đź’ˇ 2. Why Green?
Green is the color of renewal, hope, and well-being — themes often associated with the transition from military to civilian life.
It’s also linked to “green light” as a signal to move forward — symbolizing support for veterans moving on after their service.
When he said it was because of his father :
His father is a veteran.
Or maybe his father passed away and was a veteran, and this is your ex’s quiet way of honoring him.