Saanchi knows the truth about DV now, Dils feel that her care for DV is out of friendly affection whereas DV considers it love which is deep hidden which Saanchi herself doesn't knows. Here are few analytical points to explore the truth...
1- Saanchi on hearing DV's truth was initially very upset and angry. She felt betrayed by a dear friend. It conveys that Saanchi had never ventured that territory of love for DV. Her reactions were of shock as well as disbelief.
2- Her reaction after that which conveyed anger was not correct. She even tried to slap DV which felt as if she is hearing a road side Romeo calling her all this. This was surprising as one moment before DV was more apna than a family member...remember she said it at Prachi's bidai so slapping him was very unlike a mature women like Saanchi.
3- in the later episodes where DV has taken up the challenge of making Saanchi realise her love, she seems only irritated and no more angry. Irritation also is due to something which DV makes her do against her willingness. It's an irritation of not completely in control of the situation as DV earlier used to do what Saanchi asked him to do, but now he is doing the opposite.
4- She is getting conscious of DV's presence now which is evident from the scene where she was trying to hide her face behind the clothes which she was hanging for drying. From anger she has slipped into the mode of feeling conscious of DV thus his presence is affecting him in some way at least. The same happened when she put salt in place of sugar in halwa.
5- DV feels when Saanchi had bandaged his wound it was out of love whereas Dils says that she is very kind hearted and even if she considered DV as her friend she would have cared that much. The scene looked natural as surely she has been shown to be so caring for everyone. But she being awake whole night for DV when he was not there in hotel room or lobby is actually too much. DV is a grown up guy and getting so much worried for him?????
6- Saanchi remembered DV when she was doing her hair and she did tie them...she was never shown to remember what Rishi and her bhabhi said...why only DV?
7- Saanchi currently feels that DV is infatuated which is common for boys of his age. She has once mentioned that when Dils, DV and Saanchi went for a movie together. So she is not taking DV's love to be real love( such was my case too as I have also married a younger guy). Saanchi feels that guys of DV's age do not understand love and get attracted to anyone and later break it.
8- why is Saanchi keeping him away from her by taking such childish measures like not letting him in her house or helping her family. Is it not natural to develop romantic feelings between guys and girls who have been friends. Saanchi could have helped DV to come out of this foolishness( that is what Saanchi feels) or being elder to him could have explained that it's not love and he should concentrate on more important things in life. If she was so considerate a friend as Dils feels then why shunning DV like an outsider. Is she subconsciously afraid to come near DV as it makes her uncomfortable, why it makes her uncomfortable she does not know.