It is the greatest sadness of her life. It's gonna hurt, and it's gonna break her heart, but much less so than waiting until you've both committed to each other and start discussing your future together. Doctors are, for the most part, extremely responsible and determined. It will definitely take patience to work through any of this with her but it sounds like she's a pretty awesome person. Otherwise her family will likely feel incomplete to her. If you remain active, Church service is very demanding of our lives в not a Sunday thing. I'll paste a URL with links to all of them at the end of this message. It sounds like you HAVE done your best in the past.
We had a long distant relationship for 3 years. We are here looking for the other people who live this life and understand how difficult and, at times, painful this career is with which to live since the majority of people think like you until they see our families in action. Living in an interfaith, marriage can be hell. Make arrangements to send her to your cousins town and let your cousin know she will be visiting. The scriptures say that one of the main reasons good people don't join the church is because they just haven't been introduced to it. I was the bishops' daughter who went to BYU but didn't go on a mission because I was already married with a 10 month old by my 21st birthday. Does your new girlfriend have eight brothers and sisters. Plan on knowing their religion better than they do at all times. If everything she is taught is correct and the Mormon church is "true" she should be able to research any anti-Mormon books or movies and prove their criticisms are lies. I am married to a DH and what helps me the most is knowing my whole life revolves around him and medicine always come first.