Why was Sana so excited at Rashmi/Devo entry?

She was happy when they left. But now she is so happy? I don't get how others can't see her for what she is. Fake, liar and cunning. But it's good that HK came. Her true colors have been exposed.

flip queen sana...mujhe bhi weird laga kaise bhag kar gyi woh rashmi aur debo ko gale lagane ke liye...she even said ab family complete ho gyi...fake kahin ki..i think rashmi uspe trust nhi karne wali...itni jaldi toh nhi..

dogli Sana. playing cutie pie again. When Sid looked strong she was with him. Now Sid dumped her and made frndship with her enemy HK. So she has no other place to go but Rashmi.