as a PreRish follower no one would like the tea scene including methat's true and to be honest I think the closure will come when anurag for himself will see prerna starting to care for bajaj and start showing feelings for him. Anurag said himself that she doesn't have feelings for anyone but him. He used the word never. Nivi was right in her conversation with anurag. He won't let go because prerna hasn't given him any reason to. She has the guilt. So he will have to see for himself.
But for P character, these are necessary where such situations are created for her to explain him certain things.
Else P for the girl she is, wont even bother to explain him again n again
She is very stubborn.