Attorney-Attorney Conversations Privileged?

am trying to settle a civil dispute over some monies with my ex, in a latest phone call his lawyer told my lawyer that if I did not agree to a certain sum of money that his client (my ex) intended to try to prosecute me...there's a lot more to this story..but my basic question is are lawyer to lawyer conversations privileged? This seems like blackmail to me - threatening to try to get me into legal trouble if I don't agree to a certain amount of money. Anyone know this? I won't get a chance to speak to my lawyer again until tomorrow and I really want to know. Thank you in advance for any replies.