While Harry was working as a police detective he and Suzanna met and he recruited her to be a confidential informant for the Miami Metro Police Department. At an unknown point Suzanna developed feeling for Harry but Harry didn't return those feelings.
During Debra's search for the woman who'd slept with her father while he was married to her mother she placed a call to Suzanna Coffey and met her at her house. She eventually responded and talked to Debra where she revealed that she wanted to sleep with her father but Harry refused. This left Debra wondering who it was that Harry had cheated with.