Start a War Lyrics

Lyric discussion by ozzmotic 

Cover art for Start a War lyrics by National, The

Doesn't "walk away now and you're gonna start a war" imply that the speaker is ready to fight to keep the person with him? I would agree with the "goodbye song" theory if the lyrics were "walk away now, OR you're gonna start a war." But it's "and," so the war would be a result of her leaving. Just something I noticed.