Lyric discussion by People_places_things_ive_loved 

I was under the impression that the guy was irritated with the girl for not loving him or maybe not understanding him. I'd had this fear that the day I didn't tell someone I loved them would be my last day, and they'd never know I loved them. That was sort of the feeling I got here, like he has the same fear and she doesn't understand that. Or, quite possibly, she just doesn't appreciate him and he's trying to tell her he could be gone any day. The part about "Can nobody hear me?" may be about no one hearing him out. Simply my thoughts.