I think this is Mallika's dream!!! She really wanted to be married to Armaan and the night before the wedding, she dreams a dream. I think she felt CJ had a thing for Jassi and she probably was dreaming and knowing Jassi only loves Armaan, she had this devious dream which played out for a few days now!! I think she will wake up on the day of the wedding and wishes it was true.
just my two cents worth!! I think this is the only way this story will be redeemed.