Bea, I think it is PA behavior and the reason I do is that he thinks that you are not communicating w/him because you think he was the hold up...which you know he was to some extent. He's now trying to pin the blame on your lawyer, not realizing she was not the cause of the delay.
Somewhere in his foggy brain, he is hoping that you will hear about this from your lawyer and you will contact him and say "thank you for taking care of this for me". He doesn't have a clue that you know the story and yes, he's trying to get your attention the only way he knows how...money and lawyers. If I were you, I wouldn't say one word to him about this. I would let him squirm long and hard and see just what he does next. He really doesn't know how to reconnect w/you and he sure doesn't know how to apologize like a normal, rational human being.
Bea, your life's story will become more interesting as he squirms to try to find some common ground w/you. Whatever you do, do not get angry...he is trying to grow up, but w/the PA behavior, he honestly doesn't know what to do.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.