What do think these lyrics mean? Who do you think the singer is talking about in the song?

Question

Run - Snow Patrol

I'll sing it one last time for you
Then we really have to go
You've been the only thing that's right
In all I've done

And I can barely look at you
But every single time I do
I know we'll make it anywhere
Away from here

Light up, light up
As if you have a choice
Even if you cannot hear my voice
I'll be right beside you dear

Louder louder
And we'll run for our lives
I can hardly speak I understand
Why you can't raise your voice to say

To think I might not see those eyes
Makes it so hard not to cry
And as we say our long goodbye
I nearly do

Light up...

Slower slower
We don't have time for that
All I want is to find an easier way
To get out of our little heads

Have heart my dear
We're bound to be afraid
Even if it's just for a few days
Making up for all this mess

Answer 1

i think the person was talking about leaving their loved one coz of doing something wrong.

Answer 2

Get high so we don't have to think about the mistakes we've made?