I have a feeling that arjun won't marry noyna but will mess with her and throw her away just to get back at kajol 🤢 And noyna will herself be responsible for it happening to her because she intentionally will try and hook up with her own sister's ex-fiance who is responsible for her dad's death just for own greed.
It’s quite possible as Noyna is already fida over Arjun and she is jealous that Kajol is marrying a good looking and rich guy. The other girls call him Jeeju but she call him by name. Noyna’s character is self centered, jealous and attention seeking. She kind of like suits to put herself in love trap & definitely Arjun will be wanting to extract revenge from Kajol for slapping him and rejecting him on wedding day. Noyna easily fits for his revenge plan.