There is no doubt Sheela is going to spoil the anniversary of Avanish. But the question is what will be the consequences?. Most likely Preeti was the one who had the abortion and if the truth comes out then the misunderstanding between Avanish will largely be solved and they will come closer. If Sheela was calling someone who knows Preeti, then again her life may take a new twist. It is almost unbelievable that Harish and Preeti had an affair and the baby was Harish's. But if that had to be true then Preeti and Harish could never had such a good relationship till date. We have always seen Preeti supporting Harish and her reacion to Adi's question does not seem to indicate towards Harish. Earlier she told Adi Jiju used to show her the correct path.
One possibility is Sheela was calling someone who works with Harish and he/she might know the truth, but then the Adi-Preety convo becomes irrelevant. So one way or the other Avanish misunderstanding is going to be solved largely and we might see two love stories at the same time.
Please, Please, Please share your views.