She just wants to get rid of her because she assumes she is some kind of protection for him (I think this does not mean literally but in that astrology wala sense, where as long as she is with him they can not harm him).
The danger Aru is in (After the jail jeeju, khoon kharaba wale is released), is more because of association and they are trying to send her away. Make her run away. So that they get a free hand. (Whatever that means).
The real danger for Aru will begin when Mukhi will fall for her and Rami will realize this. I somehow have a feeling Mukhi will fall for her first (at least he will realize it first), and Rami, being the sharp woman (except in case of Jail Jeeju, of course) will spot this.
THEN it will be a time when the stakes will be higher. However much Mukhi has hurt her, Rami does not seem to keen on hurting his dhingali to pain him.
But if she gets a chance to take away his love, then the bargain for her will be even.