I am so sorry for you that he has done that! I tried to think of ANY situation being in that I would feel ok to pour oil on somebody for any reason let alone somebody that was crying and distraught, obviously I couldn't, the fact that he did such a low and disrespectful thing speaks volumes.
I understand you don't feel in the right position to leave just yet, but PLEASE start taking the next steps to get yourself in the best position, every single one of us owe it to ourselves to be leading a happy life. Until you are out of there do not forget how what he did has made you feel, you need that memory to motivate you right out the door.
Huge hugs Louise, what a disgrace he is.