I am so sorry about your sister. It is not healthy for you to dwell on the depth of his betrayal of you. I think he is trying to get back at you in his small way for sending him to jail, even if you did drop the charges. Of course, you did the right thing, no man should hit a woman. And there need to be harsh consequences if he does. You did nothing beyond a normal display of anger and the legal system will recognize it. But do not underestimate his change of heart. He is completely gone, and other than support issues, you need to be done with this man too. He will only bring you trouble and more trouble.
