Tanveer motive

What could be her motive to go against asad family she claims to be friend a close friend she cannot be billo rani I guess she may be working for a billo coz razia on the phone said that billo u hv to come in the picture now as only u can handle or something of that sort the first time she called billo so aga wise tanveer cannot be billo
She is maybe a pawn in billow hand and hopefully zoya saves her and become friends with her and tanveer seeing asya love move out just like Lavanya she grets a positive spin