Lyric discussion by Curio 

Cover art for Off Kilter lyrics by Birds of Tokyo

Yep, great song. I think he has decided that he is leaving the girl. I always thought it was "i'll love again' rather than "I love again"... perhaps showing that he is looking towards his future without her. And the second verse is a bit confusing but I think it's metophorical, saying he has made his final decision, he is leaving, and suggests that she should leave too.