raginis mum

Here in the U.K we are just about to find out that choti maa si the killer (although the storyline was very predictable) the question I want to know is why is Raginis mum being so horrible to Sadhna and when is Sadhna going to start sticking up for herself? and am guessing there is going to be problems between Sadna and Aalekh...this is starting to get predictable now...what do you think...