This is what I understood.
Since Arman says she is Arman's wife, and every essense in her believes that she is Arman's wife, she had a feeling that they are made for each other and nobody else matters to her and him. She does not have "any feeling" for anybody else other than him, and she thought he trusted her so much that even if she is with another man he will not feel otherwise, because "his love Jassi" belongs only to him in every sense. For her "her heart and soul had place only for Arman" and Arman knows that very well and trusts her. That is why she did not have any fear or any shame to stay with any one sharing a room. She respected him and she respected herself, because she is Arman's wife.
It is clear that, she is thinking Arman is objecting her stay in a room sharing with another man, but she does not know, what Arman saw and what happened in her life after she drank that "COFFEE".
What an irony. When he was framed for sexual assault, she trusted him and did not question him as to why he did so, instead she tried her best to pull him out of it. Here, Arman wants her to justify herself. There is a severe thunder storm in both their life!
If at all he entered inside and called out "Jassi" he would have understood the truth! If Jassi had got up just when Arman came to the room, instead of 2mins later, CJ's plan would have flopped. What a fate!
CJ! You are not worth a friendđĄ You are not a human beingđĄ Agar thumhe jaanwar kahoon tho, jaanwar ko bhi sharam hoga. đ¤˘