In August 2005, he publicly revealed he was gay during an interview with the British tabloid The Sun.[8] Feehily had recognised his sexual orientation when he was 14 or 15 years old.[9] His family, band mates and close friends knew his sexual orientation.[2][8] Westlife's manager Louis Walsh, however, was unaware of Feehily's sexual orientation when he began managing the group.[10] As the only gay member in Westlife, Feehily had kept his sexual orientation private and never had a boyfriend.[1] Unlike his band mates, Feehily did not discuss his private life in interviews, although he had dated women prior to his coming out.[1][11] In yet another interview, he told The Sydney Morning Herald that despite the fact that the majority of Westlife's fans are female, there had really been no negative reaction.[12]
During the interview with The Sun, Feehily also announced his romantic relationship with British fashion photographer Kevin McDaid, a member of the now-defunct British boy band V.[8] The pair, who lived together,[1] had been dating since January 2005 after having met at a Cheerios Childline Concert in Ireland. Feehily said that while he did not intend on getting married right away, he was happy to know he could form a civil partnership in Britain with the recent passing of the Civil Partnership Act.[12] In December 2007, Feehily and Kevin appeared on the cover of Attitude. After five years together, the couple was engaged in February 2010, which was confirmed by Feehily himself via the social networking website Twitter.[13] In 2011, Feehily discussed the couple's plans concerning having children together and discussed their marriage plans.[9] On 31 December 2011, he announced via his Twitter account that he and Kevin had split up. .[14]
Feehily is interested in charity works and supports the charity group Aware. He was shortlisted in 2011 as one of the top 50 most influential gays in United Kingdom.[15] He congratulated his local football club Sligo Rovers on its victory in the 2011 FAI Cup Final.[16]