Travis Kelce’s summer following girlfriend Taylor Swift on the road has sadly come to an end. After attending a handful of her concerts around the globe over the past few months, the NFL star has reported back to the Kansas City Chiefs’ facilities in Missouri for training camp while the Grammy winner continues her tour. “Travis’ last few concerts were bittersweet. They knew their time together like this was coming to an end and he made sure to spend every minute he could with Taylor,” an insider told a news outlet of Kelce’s dedication. “It’s definitely tough to be apart but they do everything…