"The only mistake I made was supporting her dream to become a physician."
Pardon me if I think your answer doesn't sound genuine. Every relationship has their conflicts. All I've heard so far is how great you are which we have to take with a grain of salt because we're only hearing your side.
You may feel you were used, but it seems like you weren't and that what happened was a result of not being together. It happens all the time in long distance relationships. YOU may have thought that you were giving enough emotionally to your W, but SHE probably didn't think so.
How open were you and your W to talking to each other? Was she comfortable at telling you things that bothered her? Did you "lead" the conversations before or were you able to be a good listener? Think hard about that before you answer.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.