After cross checking anaya's testimony in her last moments by visiting culprit's house and learning RV is the real culprit why happy didn't inform the police??
The inspector who knew anaya personally would be a great help to happy,happy could confide in her along with rocky and bappi,since the inspector knew anaya like a friend she would have look into the case personally by doing a personal detective kind of job.
All rocky,happy and bappi cornering RV without letting him know, then they would have created a set up for fake marriage at some point to expose him, then RV would figure out he has been set up then he would abduct happy and police,rocky and bappi had chased him then RV will try to kill happy and himself too'agr meri nhi toh kisi ki nhi' but obviously they will save happy and RV will fall down from a cliff but will return after some time and in that time roha would take a sigh of relief enjoying happy days.Since RP is doing a very good job as a villain he can make a comeback but the point is roha could not separate!!!No matter how many times RV comes back from the dead.
I had hopes with this marriage track until I saw RV doing happy's pitaai and happy's dialogues about arthi and all spoiled everything for me.