The Wrong Time
There’s a time and place to mansplain things and doing so while someone is in the middle of an anaphylactic shock is certainly not the right time or place. This OP has a nut allergy and had a reaction to some pecans she had eaten earlier. While she struggled to breathe, her manager insisted that it wasn’t the pecans but rather some pine nuts.
Considering that it’s HER food allergy, we’re sure she knows better. Besides, pine nuts aren’t even nuts, they are edible seeds collected from pine trees. It would have been much more helpful if he could forget the discussion for now and just get her medical help instead.