A love story for the ages! After Travis Kelce’s team, the Kansas City Chiefs, won against the San Francisco 49ers on Sunday, February 11, the football star and his girlfriend, Taylor Swift, were in party mode. In sweet new videos uploaded to X, formerly known as Twitter, the pair, who started dating in the summer of 2023, were seen dancing and kissing as her hit song “You Belong With Me” played in the background. While at the after-party in Las Vegas, Kelce, 34, was seen belting out a remix of the 2008 bop. “He heard Taylor’s song and came straight to the booth,” the caption read via Instagram…