Bajaj's exit though sudden but was well planned by mata....not durga maa but ekta maa. Only to bring him back when anupre relation (love) will be weak.
Ksg is a fine n versatile actor....I bet he has not signed for 4 months bajajs role. There is more to it.
Regarding bajaj's character
He knew he made a deal with prerna to sacrifice her love ...so when he fell in love with her he knew she will never accept his love in front of anurags love.
It is better to take a step back so this sudden exit of bajaj and uniting anupre
More so, Bajaj is letting prerna go so that next time she herself walks into his life. That she will do when anurag rejects her love not out of any majboori.Prerna if she willingly will accept bajaj then anurag cant do anything....because prernas determination is very strong
Anurag had proves which could show bajaj in poor light in front of prerna and the trust which he gained will be broken and that he cant let happen. Bajaj attacked anurag but that was planned so that prerna sees it and she thinks that bajaj broke the deal and then he can easily send her to anurag. Otherwise I dont think prerna would go to anurag breaching her loyalty contract.
Nikka entry this time wont be like komolika but aparna in s1(with different name)
Anurag in s1 accepted aparna as his wife. Here too chances r high because anurag will never know that she is komo. When he comes to know that it will be late as bajaj comes to win prerna..this time forever till life exists.Komo will create situations for anurag to reject prernas love willingly.
Repeating s1essence n base remains intact though story may be different
Just my view.