Kristin Cavallari and Jeff Dye were spotted on a romantic date in Nashville, one month after they were spotted kissing in Chicago, a source exclusively tells Us Weekly.According to an eyewitness, the pair were seen dining at “uber trendy” spot Bastion on Thursday, November 5, where the Very Cavallari alum, 33, complimented the staff on their duck pastrami dish.“At one point during the intimate dinner, Kristin was seen leaning into Jeff and giving him a long kiss,” the eyewitness tells Us