True:
Amay kaand: first time he Said mujhe achha nahi lagta tum doosre ladko se aise baate karo, God knows what would have happened with Amey in jail when he got to hear baby from Sai before Virat.
Pulkit lunch kaand: His possessive streak, started from his protective side that quickly changed into possessiveness
Devkit marriage: his OTT reaction arose from the fact that he thought that Sai used his feelings and was pretending to be happy playing Holi with him.
Aniket/ Ajinkya: everyone knows what happened...both were made to flee from college...God knows whether they completed MBBS or not.
Anniversary kaand: how could Sai reject him...
Post Shruti kaand: revenge from Sai to make her sorry, like Sai rejected him in anniversary, wanted to reject her same way...his anger vanished once he did.
Once when Sai was leaving after her accident post Ajinkya track, he said pata nahi kya ho jaata hai...that's literally the thing, he doesn't know isko kya ho jaata hai...
Actually, this part is real... He is shown the good boy, sanskari Chavan who is expected to remain polished and not express himself but Sai gave him that freedom so all that gussa comes in front of her only. Also, Sai was the only one who has rejected the Mahaan aadarshwadi IPS officer, so getting her was a challenge, once he got her, took her for granted...now again getting her back would be a challenge, given that Mahaan Virat married Pakhi.
If and only if, he thought that Sai could the same insecurity seeing him with other females, that too every other one as his wife.
3