Love and Quantum Physics

This is a nice idea and I read it in the book "Random Acts of Heroic Love" by Danny Scheinmann. Very good read. Makes you cry in the Tube, btw. Anyway, here is relationship explained and Quantum Physics terms:  "Not every collision will make an electron change its spin-an electron can have many affairs,.., but not all will be significant. If, however, the electron is profoundly affected by another electron it will become entangled with the new partner."