Suzzie, can you tell your therapist about this? I know that you are working on yourself and your past in therapy but our current living situation is also very important for healing.

This person is crossing a boundary by hitting you and this is not very empowering for you. I would think that your therapist could help you to set a boundary with this person so that you can tell them that this treatment is not okay and that he or she has to stop doing it. Your therapist can help you with this. Please keep us posted.