If you called your husband at work, for something pretty trivial, and you said, "and also I'm just calling to say 'love you' "
Would you be surprised that they wouldn't say it back as they were sitting in earshot of another male colleague?
It's bothered me a bit. Just curious how many other people's DHs wouldn't say it over the phone because another man was in the room?
If it makes any difference, it's a member of his team, not an relatively unknown colleague.