Only Got One Lyrics

Lyric discussion by xShani 

Cover art for Only Got One lyrics by Frou Frou

I think it goes a little bit deeper than just telling someone to live their life to the fullest. I think she's realizing that someone she is very close to has to make their own choices.

It's just the hesitation in "BUT then, its your life". It's like relucatant acceptance of the fact that, though she cares, they don't live the same life.