There were 2 scenes which make me believe that Vansh knows everything and is being vulnerable infront of everyone is a plan.
(Sorry I've written the dialogues in English,I'm not good at writing in Hindi)
Scene 1
After the shooting when Vansh wants Riddhima to have medicine
Riddhima: you only scare and fright me into doing things.
Vansh: I'm not scaring you I'm asking you to take the medicine because I care for you.
Scene 2
Vansh and Ishani scene when Ishani was sure Vansh would blast on her after she makes a scene.
Vansh's monologue: You can make people understand or do you thing by talking to them with love and empathy.
After both these scenes it makes it difficult to believe that Vansh is not playing a game. Where he on winning will get Riddhima's love as well as defeat the person who sent Riddhima in his life(Kabir).