Complex sentence: Ralph Lauren is impressed by her work and in "The One With Rachel's Assistant" she is promoted to merchandising manager a position allowing her an assistant, Tag Jones, who she has an affair with although she could never recall his last name.
Split into simpler sentences: Ralph Lauren is impressed by her work and in "The One With Rachel's Assistant" she is promoted to merchandising manager. A position allowing her an assistant, Tag Jones, who she has an affair with although she could never recall his last name.