┌─┐                     ┌─┐
     │a│                     │b│
     └┬┘                     └┬┘
      │long text here,        │ 
      │which is left aligned  │ 
      │──────────────────────>│ 
      │                       │ 
      │    message 2          │ 
      │    why on right!      │ 
      │<──────────────────────│ 
      │                       │ 
      │long text here,        │ 
      │which is right aligned │ 
      │──────────────────────>│ 
     ┌┴┐                     ┌┴┐
     │a│                     │b│
     └─┘                     └─┘