Loud office whisperer couldn't hear soft whisper

While sitting at work desk, employee hears someone on the other side of the cubicle wall whispering something in a somewhat conspiratorial tone. Despite, the attempt of bad whispering, whisperer may as well have been speaking normally, because employee on other side of wall could still hear her. Employee sitting at desk whispered over to the whisperer “I can hear you”. However, the loud whisperer on the other side of the wall couldn’t hear the whisper that was whispered in a whisper voice and kept on whispering loudly. One theory for the loud whisperer's bad whispering may be that she is hard of hearing and thought that her loud whispering was a quiet whisper.