I also agree, Kailash and Preeti ought to be together, i can sense great chemistry ;)
As for Vidhika...mhmm...terminal illness resulting in her death may work but I think this drama is more realistic so maybe Vidika will want to leave herself and get a divorce from Kailash??
I don't want a new man for preeti, in this case--I think the old saying is called for --absence makes the heart grow fonder :)
As for Harish, I think he is upset that awantika has now realised and didn't trust him all those years a go. He needs his space and wants to leave awantika to realise just how much she loves Harish and how she hurt him by ignoring him all those years, Harish is doing the same thing.
As to do with phone call, I think i'm just going to wait and see !!