In today's precap the doctor in pathlab is saying, "Main apni behan ka boyfriend? Main to kabhi nahi ban sakta." (He meant pretending to be a one) It seems Armaan asked him the question, because he thinks of Muskan as a sister. From the time of Muskan's entry, to me she seemed to be a baby sister of Armaan and he also seems to think the same. I am hopeful they both will find a way out of this messy situation and there won't be any misunderstandings between Armaan and Riddhima.