There is something that I realized. Kaajjal is getting Adi and Dev confused. I dont see how as Dev is the handsome charming Suave one of a kind guy, but somehow, when she lost her memory, she still got a flashback, and when she woke up, she had lost her memory of her past but thinks that Adi is her husband.
Remember when Adi had brought Kaajjal back, and she was still unconscious, while she was out of it, they showed her that she still was having flashbacks of Dev and Kaajjals wedding. Before kaajjal stopped the wedding. They were well into the rituals when Kaajjal stopped, so she was getting the flashbacks of her and Devs wedding, and so probably when she woke up, she thought that the guy in her flashback to whom she was getting married to was Adi. So thats why she thinks that shes married to Adi. Because of the flashbbacks. Also, when Kaajjal acts like a wife, and everything, she isnt supposed to knoe anything about Adi, but shes thinking of Devs behaviours and what Dev likes and what not, and shes getting them two confused.
Hopefully, when Dev and Kaajjal come face to face, which i'm sure will happen soon, Kaajjal will realize that she was thinking Adi was Dev, and realize that she only loves Dev, not Adi, and she'll start getting her memory back.