HLN host Ashleigh Banfield spoke to the anonymous man who claims he had an affair with Watts after they had an 'instant' connection after meeting.
He told Banfield that he and Watts met after chatting via dating app MeetMe just a short time before he was accused of slaying pregnant spouse Shanann Watts, and their daughters Celeste and Bella.
'He reached out to me and messaged me,' the man says. 'It was small talk. He told me his age. He had two daughters.
'He told me he was looking for a relationship in the long run. I asked why his profile said straight. He said he was not out and not ready to be out as far as sexuality.'
It has been reported that Watts was having an affair with a woman at his workplace.
The man also alleged Watts, 33, was not sure of his sexuality.