Coming to your point on Shivani loosing a friend and guide in Raghu which has hurt her the most , thats true as well ... She did trust Raghu a lot more than her own family and so the feeling of betrayal coming from him is hard to digest as well ... but somewhere down the line if u remember the episode when Raghu was blindfoled and coming towards Shivani during Nishi's birthday game , Shivani's expressions that time suggested that she was for a moment attracted towards Raghu and sort of wanted him to come towards her and recognise her ... that look she gave was not just a look of a friend but it was more of a wifey look where she expects her husband to recognise her correctly in the crowd 😳... Since then I feel she actually expects a lot from Raghu and mayb she wants him to prove his innocence but Raghu raising his hand on her was like a last nail in coffin to her expectations and so she feels so disappointed and hurt which was clear in the way she started hitting him ...