Los Angeles: British actor Tom Hiddleston has said that his relationship with singer Taylor Swift is "not a publicity stunt". Hiddleston and Swift have been spending time together and were spotted holidaying at places in Rome and Australia. He also attended a party at her house in Rhode Island on July 4 where he was seen wearing an "I heart TS" t-shirt. The relationship has attracted some critics, who argued that it could be a publicity stunt. "Well, um. How best to put this? The truth is that Taylor Swift and I are together, and we're very happy," Hiddleston told hollywoodreporter.com. "That's the truth. It's not a publicity stunt," he added. Swift split from her boyfriend of 15 months, DJ Calvin Harris, shortly before she was spotted with Hiddleston.