Mrs Quinn told the jury that she did not recall any injury on her ex-husband in 2003.
She said he had a naturally hairy upper body – and in the summer months would shave his chest, using clippers and a wet razor.
Lisa Wilding KC, for Mr Quinn, suggested to the witness that her memory was wrong, and she could not have had the conversation about the missing shirt at the time.
The attack had not been in the news until the day after, Wilding said.
Mrs Quinn said she could not remember the dates but “we definitely talked about it”.
Quinn, who has been living in Exeter, pleaded not guilty to two counts of rape, grievous bodily harm and attempting to choke or strangle his victim to render her unconscious while he carried out the attack.
The trial continues.