Thus, my approach of a possible inoculation of the danger and should [hopefully] work out nicely in synergistic effect with the verbal explanations that are all-so-common to the situation.
So.... apparently this thread has been hijacked into an uninvited relationship counseling session for you, but I guess I feel like I need to chime in again and express how disturbed I am by how you view your relationship.
It's true that what you said originally differs from what you are seemingly saying now, but to tell you the truth, I don't know if it makes a difference.
The tone of what you're still saying is strange-- I don't know if it's healthy to think that you can "innoculate" your relationship against some perceived future problem. At the core, how much do you respect your SO? Is she a getaway for you from the boredom and horrors of your work? Or is she a partner with whom you share experiences and grow? I would venture to say that only the second type of relationship can survive the rigors of medical school, regardless of how well "trained" she is.
I don't know why you inquired about my own relationship, but my girlfriend is a PhD student in physics. We both know how busy we're going to be, and talk a lot about how to tackle the upcoming years
together. I wouldn't try to "train" her, (jokingly or not)-- I am in a relationship with her because I am already confident of our ability to withstand stresses.
I don't think a relationship is a formula [innoculation + verbal reinforcement == happy girlfriend], and I think that you may be setting yourself up, or even worse, your girlfriend up for heartbreak should you think of her simply as a variable to manipulate in the system of equations that is your life.
To each their own, though, I guess. I just hope your girlfriend is happy and remains that way. The tone in which you describe her makes her seem kind of naive-- I hope you're honest with her so that it ends well!