OK, I think I see the problem with this conversation. When people talk about personality in communication, they generally mean the manner of expression. What you seem to want is a tailoring of the content to your needs. At the moment, I believe the only way to do this is with prompt engineering. I suppose eventually some company will offer the ability to customize your account profile so that responses are better tailored.

Yeah I think you are right in this regard. Regarding the miscommunication. However I think it should be a mixture of tailoring content to your needs and having some positive expression that feels more human and intimate without a romantic component. Like a trusted colleague.