Coming to madhu,i feel she was definately faking it ,i mean can a person change in 7 hours!The way RK said i m going kill u first if you move on and if i dont love you its ok but you have to love me forever .He threatened madhu and she was almost disgusted.
Now all of sudden,she is in complete change of attitude.I feel she has realised there is no where she can come out through this by fighting so she has some different plan .