Career or Love, what should one choose when need to?
The answer is very simple.
You should choose what you really want. There is no written Dharma about it. Even Dharma varies individual to individual.
To enlighten us God Shri Krishna chose his responsibility over his love. And no one can deny that his love was not true, it was true but remember that
True love can never become hindrance in our path of growth. And growth comes only when we listen to ourselves, listen to our gut and follow our path.
So only you will decide what is important for you. And when you have decided, follow it with 100% conviction.
You are the boss and you have to decide baby what is important for you at that time.