That could work maybe the also bond over the differences  in the pursuit of  redemption. Since hers is about redeem herself for past deeds that she was involved in because her parents willed it and even though she was  basically a  legal aid in the families corrupt law firm she still  did work for them and that does not lead her blameless and the differences in why she would  guide someone to redemption versus what Grimaruk does. Maybe this forged a close bond and  she may have even engaged in rituals  of  his faith on a smaller scale than the orgies. Maybe she put it on the line  to keep her skill up at getting out of restraints. Like she would let you tie her up and if she could not get free she would agree to take place in some of the rites of your faith with certain stipulations since she has no desire to get pregnant.