The first situation is called dominance, the second is as you said, electromagnetic. Very generally, dominance is the other person's energy onto yours. This is like looking into how another person works. The energy is very educational for the person with the open definition. Electromagnetic is more like chemistry. Something happens when the two of you come together that both of you notice (not just one person). It is more love hate. More electric. If you live your design both allow you to be yourself. Neither one more than the other.