Heather's Links
At first, he only saw her as a distraction- or rather something different from his normal life. She seemed to be a fun challenge to try and manipulate. As he got to know her more... he started to feel something else? A similar feeling that he felt with Thadeusz a long time ago. Angry at himself for once again treating something below him as a friend he took it out on her. Not physically of course but rather pressuring her and pushing her to follow his whims....
(I suppose eventually Heather will swap and they may fight? Leaving Shar to leave her and go back home or something)