I couldn't resist commenting here. I don't want to comment on Arhaan's matter because she is in the house & she doesn't get to see everything clearly. So, she will decide what to do with her life..
But, on Shukla's matter, how did you even find that flirting? It's clearly visible that they are doing it sarcastically. Shukla mock flirts her. It's clear by the words he used while that So called "flirting"
She responds in the similar way. How is it flirting? Come on. When he is being that fake cordial, she is doing the same thing. If she doesn't, they'll say, shukla toh hamesha try karte hai, ap hi nahi karti.
She even said this to Asim that she knows why shukla is doing it. What more clarity is required.
I think you really dislike her too much. That is why you feel so (Not mocking you. Genuine observation)