I heard Glen Hansard explain the meaning like this: Say you are at a party and you see someone who catches your eye.
You realize after your initial attraction that it is your partner/s.o./ spouse with whom you have had a rough relationship lately.
You realize that it is not too late for the relationship, that it is not too late to give it another chance.
His, GLEN'S explanation, not mine.
I heard Glen Hansard explain the meaning like this: Say you are at a party and you see someone who catches your eye. You realize after your initial attraction that it is your partner/s.o./ spouse with whom you have had a rough relationship lately. You realize that it is not too late for the relationship, that it is not too late to give it another chance. His, GLEN'S explanation, not mine.