In other engagement news… Tinsley Mortimer’s off-and-on love, Scott Kluth, proposed near a group of Christmas carolers by the steps of the Chicago Water Tower on Nov. 24. “Scott’s apartment is close to where the carolers were,” a source told Page Six of the proposal. “They were walking to dinner and they saw these carolers, and they broke into Christina Perri’s ‘A Thousand Years,’ which is their song. It took Tinsley a few seconds to figure out what was going on, but then Scott got down on one knee. He’d organized the whole thing with the carolers in advance.” The reality star “was totally surprised,” added the insider. “Her friends sort of knew something was coming, but it really did take her by surprise. Scott asked her permission, so their families knew, but it was a surprise to her friends.”