Lyric discussion by Not_1 

Another thought crossed my mind when I listened to this song last night, and it's the line "Forever's gonna start tonight".

I think that line means she is going to commit suicide. This song is a final attempt to get this guy to understand that it's either meant-to-be, or she might as well kill herself. Death lasts forever, after all.

I actually really love that interpretation.

An error occured.