Some have talked about this as a sacrifice on Dev's part regarding giving up Radhika. It is not a sacrifice to me but need for self-glory. As Misti wrote, the prophecy was not about a particular person but CB who is Rohan's wife in family's eyes. They should show Dev thinking about it once the initial shock wears off. In any case, it doesn't matter if Radhika loves him or not. Regardless, he has no right to try to distribute Radhika like an object. What Radhika wants matters. If Radhika wants to marry Rohan, it has to be her decision and not an emotional blackmail from Dev that leads her to it. I have big objections to that. It is same as what Radhika did in CB1.
Initially, she was not party to it and others did it. But later on when she came to know that Dev had never accepted Vishaka and for that matter Vishaka was only interested in her career, she still forced him to accept Vishaka by emotionally blackmailing him even though it was Vishaka who had run away. When Dev refused that one time, she left for Ashram but not before writing a letter full of emotional blackmail to Dev. It was her life, so she had a right to leave home or not accept Dev. But writing that letter was terribly wrong on her part where she made it sound as if Dev's rejection of Vishaka was responsible for her running away. Then when the proposal of Dev's marriage came, she made him go to Mumbai to ask Vishaka to come back for one last time. So Vishaka had no objection to coming back, then Dev was supposed to accept Vishaka without any problem. Then they never showed any remorse on Radhika's part or a realization that she had made mistakes.
So far they have not shown Dev doing any of this. Right now he just accepted that Radhika is going to marry Rohan. But I am almost sure that once Radhika figures out that Dev is her husband and she is about to be married to Rohan and tries to tell Dev the truth, Dev would brush her objections (interrupt her before she could tell him about the marriage) and tell her to marry Rohan. If that happens, they would also be regressing his character. The precap irritated me. He has right to talk about Radhika that way but not to Rohan. They could have shown him doing that in the privacy of his room or in front of the murti where he is heart broken and telling Radhika's murti all the things he couldn't tell her or anybody else.