The person is revealed to be...
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Karan (while hugging him) : Hey Arnav bhai...... I am happy that u r here... But y a sudden visit..
(Just then he see Swara and  realised that yesterday what all had happened has made her call him...In all these Swara was sitting there quitely )
Arnav: I am fine.. Karan....We will talk afterwards first we should have our bf..

Both of them move towards bf and sit either side of Swara who was sitting quitely and arnav starts feeding her and without uttering a word she was eating. And side by side he was feeding Karan also, because he can sense Swara is upset from him and he know something has happened..... After breakfast ,he give Swara her medicines now all are sitting in Hall... Arnav is sitting beside Swara taking her in his embrace , he knows that she is trying hard to control herself...
Arnav : Karan, what happen ??? And dare u lie....
Then Karan told him everything about yesterday, including his talks.... Listening to which he got hell angry on MFand GF... And also on Karan as remember that past which they always wanted him to forget...
Arnav (trying to be calm as Swara is in hins embrace) : Karan.... What the....(interuppted)
Karan : Bhai... I am really sorry... I know u all wanted me to forget my past and I have promised Shona that I will forget my past... Yesterday I just lost my control, first the conversation of MF and GF, them doll's outburst and moreover listening to her sobbs, I just can't control.... I promise bhai i will never remember them... Plzz forgive me last time..... (Till now he was crying bitterly)
Seeing him crying Arnav hugged him but Swara was still silent)
Karan (holding her hand) : Shona plzzz....
Swara :  U know how I felt yesterday first doll, she was crying bitterly but somehow I managed myself , but when I saw u in that condition, I felt like I failed (Karan was going to interrupt) no Karan let me speak.... U can understand my pain which I felt yesterday by seeing ur bestest friend all shattered and crying just like a baby.... (A lone tear escaped from her eyes which got noticed by both ) It's not that I am angry or upset with u, u know it very well that I can never be upset from u... But do remember ur promise plzz...
Karan (hugging her tightly) : I am sorry Shona..... I will remember my promise.... Pakka....
Swara: okk...
Then Swara broke the hug and noticed Arnav and lhugged him tightly but still didn't said a word...
Arnav : Shona....
Swara:
Arnav took a sigh and start caressing her hairs and with so much of love again called her.....
Arnav : Shona........ Angel...
That is it for her....
Swara : Bhai.. Now what they want from me.... Why they are after me...??? When I was in their life, they never cared for me...  6 months before when Mr. Maheshwari handed over me divorce papers, no one stopped him or neither me..... And I left them because I was not able to take it more....
( Arnav and Karan were listening to her and was not stopping her as they knew it is needed but from inside they were hell angry on MF and GF)
Swara: That's y I decided to come back to u people and I flew back to London to all of u..... After 6 long months I came back  because I know I can't always run away like this.... But now they want me in their life again..... What do they think of me.??? Their personal toy... That whenever they need they will keep me and when they don't feel need of me they will throw me out of their life.....
(Her every single word was just raising their anger towards them but right now their priority is their Shona... But now they are not able to listen her... They look towards her and find her sleeping due to medicine effect.... Her pale and tired face was showing that she has not slept whole night.... Arnav took her in her arms to her arm and made her lie on bed... And left from there not before kissing her forehead.