I used to listen to this when I was fifteen, so the fifteen years thing really resonated with me. I think it's about not being tied down to just one guy, or at least being independent and not depending on a guy. You're your own woman, just because you f*ck a guy doesn't mean he owns you ("love lasts more than one night") and you have a whole career in front of you, you're still young and free so don't rush into being some guy's wife.
I used to listen to this when I was fifteen, so the fifteen years thing really resonated with me. I think it's about not being tied down to just one guy, or at least being independent and not depending on a guy. You're your own woman, just because you f*ck a guy doesn't mean he owns you ("love lasts more than one night") and you have a whole career in front of you, you're still young and free so don't rush into being some guy's wife.