By pathic do you mean empathetic? This is just an intuitive understanding of another's mind/mood, and being able to put yourself in their shoes. What you do with your ability to perceive such things is up to you. If you let it get to you, it will get to you.
In terms of your partner, you needn't fret about it. Point her in the direction of some decent literature. Meditation techniques, developing intuition, empathy, etc. Everyone has these "gifts." Work with her, play at exploring what one another is feeling/thinking. It will help her develop these qualities and bring you two closer together.