Dealing with people in love with you

[xise]

Under law of responsibility, if the guy knows that the girl won't learn the lesson and aware of every emotion and intensity of emotion of the girl, should he choose the option that will offer least trauma for the girl? Or should he see from the spiritual perspective, remain open, helping the girl go through this experience, knowing the girl won't learn the lesson and will likely experience much more trauma than if the guy just disappear?

How can you know a person's future reaction to catalyst? That is the beauty of free will, after all. Even if you knew there was a 99% probability she wouldn't learn the lesson as you say, just because you might right 99 out of 100 possible times doesn't mean you aren't already in the 1 in 100 timelines where the unlikely occurs.

Consider having the open, transparent discussion from the heart if you haven't already. That would certainly be a good way to offer green/blue energy in hopes of helping her understand your position.