I think it is good that you do bring this up with her, because that way you don't have to sit and wonder about it. I think that makes it worse. Here in Sweden, it's not unusual that you get an extra docotr getting dragged in and get introduced to them as "Here is dr. Said and he is going to follow along because he is getting his licence to practice here" or something like that. They don't tell you you can kick him out, but i always assume I could probably do that if I wanted. Again, that is also an implicite consent/from both sides. Problem is both understand that the patient is usually well socialized not to talk back to a dr. and is not a snippy doctor's daughter like me.
By all means, get her to define what implicit means in those circumstances. I think it is fair to point out that for a lot of people who don't live in the medical world, these terms arenot understood the same way as they are in the world that the medical student lives in.
Huggs dear, and I hope that you guys can work this out to your satisfaction.