He was named by The Sun as Steve Dymond, 63, who took a lie detector test to convince his fiancée, Jane Callaghan, that he had not been unfaithful.
A friend told the Daily Mirror Mr Dymond had expressed feeling suicidal to his landlady. He was the most generous and loving person.
The US-China trade dispute leads the Financial Times. He cheated on me, I know he did. I really believe it was the show that tipped him over the edge.
Despite the controversial nature of the show, she praised the show's team for their aftercare efforts.
Love Island has since promised to extend its support process and proactively offer help to islanders participating in the new series, which recently began filming.
However, he was found to have cheated and days later reports suggest he died of a drugs overdose.
A statement says that an internal review of the show will be carried out before it is allowed on air again.
The show is said to have ceased filming until a review of the episode can be carried out, so the programme will be off air indefinitely.
Cadwalladr shared a piece she wrote in 2008 about the programme and said she was "amazed it took this long" for the show to have such grave effects on its subjects.
X Factor star Christopher Maloney said a celebrity edition that had been due to air today - featuring himself and ex-EastEnder Danniella Westbrook -would be screened at a later date.