People say Vansh is a Worst ML as no one till now took this type of revenge from the FL but people forgot that none FL till now married the ML for her boyfriend and to destroy the ML.
If you've watched any of the Gul shows, there ml simply took revenge or those push and pull and character assassination of the FL coz of some stupid misunderstandings then also many people including me like those Characters coz anti heroes are loved most, like ASR. Also one of the most popular character of rangu, RK of madhubala, he married madhu for revenge and dumped her afterwards.
I have different perspectives for real and reel.