I think Aniket leaving means that he's going to do something to prove Sindoora evil and put her in jail. First of all, Sindoora was scared of Aniket cause he said he knew her raaz. She wouldn't do anything when he would be around because she knew he knew something about her and I think it was implied that the raaz was between both of them. And of course it was a bit obvious in the beginning that Sindoora had something to do with Sagar being the way he is. I hope Aniket comes back and takes Sindoora to court. He has to prove her guilty for trying to kill Sagar for the family's money. This is just my opinion. I hope that he is leaving only to bring back justice for Sagar and stick Sindoora in jail. She needs to go to jail and then they can show Sagar getting better, and then his ordeals with Vidya (accepting her and what not).
What do you guys think?