Shehnaaz is no doodh ki dhuli, but Himanshi is extremely vengeful & manipulative. Even all this Asim drama is because she can't digest Shehnaaz's success & her failure on the national stage. She will "act" extremely sweet & caring, but there's a lot of evil behind the scenes. If in doubt, just check how she was talking about Salman behind his back. I think Umar Riaz knows, which is why he's not very pleased with the angle.