I think something will happen which will make Bajaj stiff and he will start ignoring her and then she will realise his importance in her life and will start developing feelings for her.I also feel that they showed us him falling in love with her so quickly, when she did nothing that much special for him because may be just may be
They wanted to show us by the time komo enters, for him now kuki and she are same. So when komo will plan anything bad or wrong with prerna, he will react in the same way, when someone tries to hurt kuki.
They cant show that if he is still indifferent towards prerna and has no feelings whatsoever for her.
We all know prerna can't do anything alone by herself.