Thanks for the update Dev. I never knew that Sita was obsessed with Golden deer from her childhood. So that obsession of her made her to demand for the golden deer (Rishi Mareech) during their 14 years of exile from Ayodhya which was responsible for herself landing in Lanka.
She wasn't. They just tossed it into the show, just like in the Karna show, they kept showing Karna removing chariot wheels