http://www.linda-goodman.com/ubb/Forum1/HTML/006795.html
http://theinnerwheel.com/2012/10/19/the-endless-hunger-of-chiron-moon-part-one-chiron-moon/ In synastry ... the emotions of the Moon Person will trigger the wound of the Chiron Person, and the wound of the Chiron person will trigger the emotions of the Moon Person.
With a synastry opposition ... that triggering/permanent-activation will (almost certainly) result in each person projecting his/her own issues onto the other person.
But ... by not providing details of the sign, house and "condition" of A's Moon and B's Chiron ... you are asking astrologer's equivalent of "how long is a piece of string".