Verified answer

The first part before the video, the guy and the woman are in a field of flowers. They tell each other how much they love each other and how they want this to last forever. They also tell each other not to "leave me". They kiss.

The middle part is when the woman finds out the guy is in the army. She starts throwing and fit and asks, "why did you do that?" The guy says he did it for us, "I did it for us! Out of all people I thought you would understand!"

There is no last part but the last scene shows the girl sitting on some bleachers looking into the sky.

Hope that helps. If you want the EXACT lyrics, go watch the music video. You can easily find it with Google.

If i remember right as it ends doesn't she say "I'll never leave you" i think, i can't really remember and as its not an ideal time to put the sound on on my laptop i can't find out