an idea for a song

(this is just the chorus of an unwritten song)

(IV)               (V)              (I)
      And when you tell me that you love me
                   (V7)             (Im?)
              I'll never     need to cry
                  (IIIm?)    (VIm?)  
              I'll never cry again
(IV)               (V)              (I)
      And when you tell me that you need me
                   (V7)            (Im?)
         That your love will never die
                  (IIIm?)    (VIm?)  (IV)
              I'll swallow it again

 ...

(IV)               (V)                 (I)
      And when you tell me that you're leaving
                   (V7)           (Im?)
                 I won't begin to cry
                  (IIIm?)    (VIm?)  (IV)
             I can never cry again
         (I)      (IIIm?)    (Im?) 
             I can never cry again