The point here is that Katek objects to a term that I presume, not having been told otherwise, her husband uses as a term of affection. It might of course be a bad habit that has stuck. The trouble is that this phrase gets on Katek's nerves and she objects to it.
She is fully entitled to object and to expect her husband to show her the courtesy of introducing her in some other way.
However, anyone who has been married for any length of time knows full well that it doesn't always work that way.
so Katek if you can't get your DH to respect your point of view here, you are either going to have to teach yourself not to hear this, to you, obnoxious expression, or descend to kindergarten level and call him something he dislikes, or finds patronising.