By Tom Beattie Kansas City Chiefs Super Bowl LVIII winner Travis Kelce has responded to conspiracy theorists questioning the legitimacy of his relationship with Taylor Swift. The pair exploded onto the scene midway through the NFL season, when Swift rocked up at Arrowhead Stadium to all but confirm the rumours of a relationship were true. Since then she has attended multiple Chiefs games and the pair have been spotted in both New York and Kansas City enjoying various dates. Before earning his third Super Bowl ring on Sunday, Kelce was asked what he thought of those who claimed the relationship…