Back only for the one he loves

Riddhima was scared of her own true love as she felt she would never be safe with Vansh.

 She thinks that Vansh will kill her. Now to whom she should trust?

Riddhima shared this with Ishaan at the spot, "No, he'll murder me. He wants revenge from me."

Actually Ishaan did that all for Riddhima's security, "He will not as it is a commitment between me and Vansh. Trust me."

Ishaan didn't give her details, "Please, Ishaan stay with me. I will die."

Vansh then spoke, "I also died, Riddhima but you left me."

But Riddhima tried her best to not even leave him alone in the hospital and all that but why is it becoming difficult for her to explain everything to him?

Maybe, because of lack of trust...

Riddhima couldn't allow Ishaan to eliminate himself from her life. She couldn't replace Vansh with him.

This is a sign of how weak her love for Vansh already was that she replaced Ishaan with Vansh