Look, I don’t know what to tell you.
Either she doesn’t know your name or she does and would rather not use it. In either case, you can resolve the issue by simply…
talking to her. If you can discuss and agree on the weirdest kinks and fetishes prior to a session, I can’t imagine it’d be a problem to request being called by your name!
As far as texting with names… people would do well to remember that after all is said and done, this hobby is still a business. SPs have every reason to set clear boundaries. We’ve (sadly) all heard the stories. If they’d rather keep the tone courteous but strictly professional, take a hint and go with the flow.
Cheers!