Wake me up when september ends

"Wake Me Up When September Ends" is the fourth single from Green Day's seventh studio album, American Idiot.And it's also one of my faviorte songs.I know Green day from a tv news last year-they get the Gramy Prize in 2005 and at that time I listened to "Boulevard of Broken Dreams".
Today I watch the mv of "Wake Me Up When September Ends",it features the story of a teenage couple:

The video strays from the original meaning of the song and instead focuses on the teenage couple as the boyfriend promises never to leave his girlfriend. Later in a lengthy sequence, the girlfriend confronts him about something he did (open-ended), repeatedly yelling, "How could you do this to me?" Although the audience's initial assumption may be that he was unfaithful, subsequent scenes reveal that he in fact enlisted in the United States Marine Corps without her knowledge. The video then shows the boyfriend in battle (presumably in Iraq) being ambushed by enemy forces. The war scene cuts out with the boyfriend hiding after running from an explosion. It cuts back to the girlfriend again, where she is crying. Since the war scene suddenly cuts out, the viewer is left to think about what might have happened. This video adds to the American Idiot anti-war sentiment of the U.S. invasion and occupation of Iraq.

It seems like the mv tell a different story with what the song tells(according to Billie Joe-who write it,the song was written as a memorial anthem about his father-who died of lung cancer when Billie Joe was only ten years old),but I love this story all the same.