Ek Hasina Thi S03 E04 Dev Learns About Nitya's Death

When Dev questions Shaurya about Payal’s rape case, Shaurya informs him that he was declared innocent in court. He also informs Dev about Nitya’s death. Elsewhere, Durga decides to take revenge on Dev. Meanwhile, Sakshi informs Shaurya to stay away from Durga. Why is Durga angry with Dev?