Regarding Damini, she does not hate Shaurya as much as she hates Urmi but she defiantly does not care for him, Damini is someone who wants to CONTROL everything n everyone around her, no one knows the "Slow Development of feelings from friendship to love" better then Damini because she saw Ishaan falling in love with Urmi while helping her in her struggle,
Damini was as blind n overconfident regarding Ishaan's feelings for Urmi as Urmi is regarding the developing equation of Shaurya Diya, Damini has an experience you see that's why she can see the future of ShaYa...
Damini is a very dominating women, She had lost her control over Ishaan & Taani due to Urmi & Samrat, She does not want the history to repeat itself, no matter how much she hates Urmi she does not want to loose the control over Shaurya n Ishaani, she just wants to Dominate That's It.