Thank you. Given the context of everything, his actions can be considered to be unprofessional but not illegal.
A part of zealous advocacy includes such tactics. Again, he was throwing those out there to either throw you off mentally or see if he could gain an admission against you.
Is it rude? Sure. Does it violate a law? No, not at all. Litigation
can be a hard game for a lot of reasons. What you've experienced is one of them.
You are free, however, to contact his supervisor and complain about his professionalism/lack thereof/ and demeanor.
You could also file an ethics complaint against the lawyer; however, honestly, they will not give you the relief you seek and I know that would only compound your frustration. I just want you to be aware of that up front and not give you false hope on that avenue.
My goal is to provide you with excellent service – if you feel you have gotten anything less, please reply back. I am happy to address follow-up questions. Thank you for your business!