Complex sentence: Gwen's sister and personal assistant, Kiki (Julia Roberts), and Gwen's lover (Hector) are also involved; although Eddie always liked Kiki, when he sees her at the junket she has lost weight and is now physically attractive.
Split into simpler sentences: Gwen's sister and personal assistant, Kiki (Julia Roberts), and Gwen's lover (Hector) are also involved. When Eddie sees her at the junket she has lost weight and is now physically attractive.