Isn't this song by Sia one of the loneliest-feeling songs?

as soon as i saw this question i knew it must be breathe me, I really love this song i used to play it on repeat and cry when i thought about this girl who i fell for and who used to be an extremely close friend to me. Now when i hear the song it kind of takes me back to last yr just in memory when i went through that. But the song has such depth and emotion that i can appreciate listening to it without the baggage of previous emotions.