My interpretation:
I found your hairband on my bedroom floor,
The only evidence that you've been here before
And I don't get waves of missing you anymore,
They're more like tsunami tides in my eyes
(A hairband is something a girl leaves around all the time; it could fall out their hair and then they just find another one, leaving that one lying there. He has nothing else from her except for the hairband and the strong loss of her)
Never getting dry, so I get high, smoke away the days never sleep with the light on
Weeks pass in the blink of an eye,
And I'm still drunk at the end of the night
I don't drink like everybody else,
I do it to forget things about myself,
Stumble and fall with the head spin I got
My mind's with you but my heart's just not
(He is so stuck in his "tsunami" that he has to drink and smoke it away. The "light" is pretty much his happiness; he has none. His heart is ready to move on but his mind is still on how things went down.)
So am I close to you anymore, if it's over
And there's no chance that we'll work it out
That's why you and I ended over U N I
And I said that's fine, but you're the only one that knows I lied
You and I ended over U N I
And I said that's fine, but you're the only one that knows I lied
("Uni" is British for "university". It just happens that it matches perfectly with the American "you n' I".
Everybody said we'd be together forever but I know that,
I never wanna settle down, come around, break up the love like Lego now,
Never wanna turn into another like you,
Sleep with my thoughts, dance with my views,
Everything's great but not everything's sure
(He doesn't want to have something to serious but he doesn't want to ruin it, tear it apart like legos.)
But you live in your halls and I live in a tour bus,
Now I'm in a position to be another stalker like every thing I say seems to always sound awkward,
Like our last kiss it was perfect, we were nervous,
On the surface,
And I'm always saying everyday that it was worth it,
Pain is only relevant if it still hurts,
I forget like an elephant, or we can use a sedative and go back to the day we fell in love just on our first kiss
(She is going to college and he is at his musical peak; he couldn't give it all away for her. Even though he says that he'll be an "elephant" and forget, he is just being sarcastic and meaning that he'll always remember but maybe drugs & alcohol could take it away.)