Super Bowl LVIII will air on CBS with Jim Nantz and Tony Romo calling the action from the broadcast booth. Some viewers will be paying close attention to what Romo says. If history is a guide, Romo at some point will talk about Chiefs tight end Travis Kelce and also mention his girlfriend, international singing star Taylor Swift. Only Romo won’t say they’re dating. He’ll refer to Swift as Kelce’s wife. That’s happened three times and — because this is the most famous couple in the country — it’s generated headlines each time. The first instance was when the Chiefs played host to the Bills on D…