She makes her predecessor (and jilter) Brad Womack, who's not very expressive, seem like Ryan Seacrest by comparison.
"to deceive (especially after holding out hopes), cheat, trick," 1660s, from the same source as jilt (n.). Related: Jilted; jilting.
1670s, "loose, unchaste woman; harlot;" also "woman who gives hope then dashes it," perhaps ultimately from Middle English gille "lass, wench," a familiar or contemptuous term for a woman or girl (mid-15c.), originally a shortened form of woman's name Gillian (see Jill).