Lavigne came up with the concept for the video herself, which was directed by . While she has stated the song is generally about the "emotional stuff" that comes with missing someone you love, it was reportedly written while she was married to Deryck Whibley and inspired by the distance created by their separate touring schedules.
The returns to the park where she and her boyfriend were caught, where they have carved their initials, "A + D," into a tree.
The visits his wife's grave and raises a glass in a final toast to her memory.
A young pregnant woman says goodbye to her husband as he leaves to fight in a war. She spends her days distraught, watching news of war casualties and waiting for any word from him.
The finally receives a text from her husband saying, "I'm okay. I miss U," while at a military memorial service.