Lyric discussion by VerbalTic 

Cover art for Always lyrics by Peter Bradley Adams

I would say that it's about someone who is so ill they will die but this women believes in them and think they will get better.

"You can break them down With your highs and lows" That bit would be about their heart failing from time to time. "You've been away too long" In a coma probably. At the end they pass away.

My Interpretation