She was my once in a lifetime Happy ending come true Oh I guess I should have told her I thought she knew She said I took her for granted That's the last thing I would do Whoa I'll never understand it I thought she knew I thought she knew My world revolved around her My love light burned for her alone But she couldn't see the flame Only myself to blame I should have known I should have known A heart full of words left unspoken Now that we're through I'd sell my soul to have this silence broken Oh I thought she knew I thought she knew I thought she knew My world revolved around her My love light burned for her alone But she couldn't see the flame Only myself to blame I should have known I should have known She was my once in a lifetime Happy ending come true Whoa I guess I should have told her But I thought she knew I thought she knew I thought she knew I thought she knew I thought she knew I thought she knew Oooooooo Oh I thought that she knew Yeah ooooooo