Both the lyrical content and the two singing tell the meaning of this song for a deeper perspective then most would think. The two singing both at seperate times and together actually give a meaning that many, I believe, fail to realize.

First part

He's saying hello and that he hopes she's good, obviously. He goes on to say "tell me something sweet to get me by." This is saying that he needs her to tell him she loves him so he knows she's still waiting because he can't come home yet.

The chorus, as many would say, is stating that if she can wait, they can make it last. "Then I swear come tomorrow this will all be in the past, well it might be for the best." He stating that when all is said and done, what happens now happened and it was for the best.

Second half when she sings. She needs him there. When she says "And I know you don't want to be leaving. Yeah you want it but I can't help it, I just feel complete when you're by myside...come home till their singing.."
Indicating that he doesn't want to leave and that she understands he wants what he set off to do but that she would rather him be there.

Moving on, "You know you can't give me what I need...I can't wait through everything.." She's saying that she loves him but she can't wait any longer.
"Is this really happening?" He can't believe that they're falling apart.

"I swear I'll never be happy again and don't you dare say we can just be friends." He's upset and he can't see her as anything less than what he had her as.

"We knew this would happen eventually." While they tried, they both knew that it would ocme to this.

Now this is the interesting part, if you listen to the end, you can hear her singing the chorus with him, which is where I believe adds a new meaning because of the background singing as well. If you listen, they say "Now everybody's singing la, la.." compared to earlier when they were saying "Till they're singing" indicating that he's accomplished what ever he set out to do. Take this with the fact that she's now singing along to the chorus saying "If you can wait till I get home then I swear we can make this last" I believe it's meaning that because everyone is singing la, and she joins him in the chorus, she, while felt couldn't wait, ended up waiting and wants to make it last.

This song is incredible because they not only wrote excellent lyrics, but the way it was played and the singing added a new perspective to the song, something you can't find in a lot of other song.s