do surbhi doesn't know Pooja loves Naren alot

it's surprising surbhi wants to help Naren to know what Pooja is upto . I thought surbhi knows the truth in their first dinner date of surbhi Pooja and Naren dhabha that Pooja loves Naren a lot . that's why she ate green chilly and also said about letters send to her in name of Naren to Pooja . she know Pooja left Naren only for just a year and after that she'll be back in Naren's life , that's why she tried to kill Pooja . she saw how Pooja desparely made soo many efforts to bring Naren's life . it shows how much Pooja loves Naren . surbhi is not such a dumb who can't see this truth . still thinking that she willget Naren by creating mu between Narja and spiking Pooja's drink .