I think when Asad says I'm with you to Tanveer, he means that he will be there to protect her from her "ex-husband". I don't think he means that he is choosing her over Zoya. I think Zoya knows how much Asad trust Tanu and how much he believes Zoya so I don't think she'll even bring out the challenge in front of him. She'll just do what needs to be done to expose her in front of everyone. Really hope that is soon. Getting irritated with tanu and her ruining every nice moment.