Wow. I am on the Autism Spectrum so I am always at the end of "sorry, I must have misunderstood that" or "maybe I wasn't clear enough" or "there may have been a miscommunication, let's start over". Your constant "it's your fault, not mine!" attitude is really turns a lot of people off of having conversations with you.
Both of the participants in a conversation are at fault when there's a miscommunication/error in understanding. Whether you like it or not, claiming that you didn't intend any offense does not stop offense from happening. Communication is two way, which means that offense is also two-way.