Agreed...you need to walk away and shut down when he starts badgering you in this way. Turn off the cell phone, turn off FB, turn off your email, do whatever you have to. Shutting down gives him the clearest signal of all that you are not going to put up with this. Be the bigger person and walk away until heads are cooled. I've been through all that you are going through and it sucks, but if I could make it through, you can!