Lyric discussion by FeyTH 

Cover art for It Doesn't Matter lyrics by Alison Krauss

I have a different perspective... it's not like he leaves her and doesn't care about her feelings. It's her telling him he should go (for whatever reason), that she won't be selfish by making him stay for her. It's okay if he goes, she understands...

Yes, it's a sad song, but it's beautiful... about self sacrifice, if you ask me. But hey, that's just my opinion ;)