Who did nick lachey cheat on jessica with?

Nick Lachey was rumored to have cheated on Jessica Simpson with several women during their relationship, but one of the most notable allegations was regarding his connection with actress and model Kristin Cavallari. However, Lachey has consistently denied these allegations, and there is no definitive evidence of infidelity. The couple's relationship ultimately ended in 2006, but the reasons for their breakup were multifaceted and not solely attributed to cheating.