Love it, or hearing her tell me how she kissed him.
Yes, it's more intimate and thus, jealousy-inducing. For me, there would be no thrill without the (managed) jealousy. We're all different of course, but I truly don't relate to those who say they have "no jealousy." Out of control jealousy is destructive. But I don't understand what the difference would then be, between watching a woman getting fucked, to whom you don't feel any attachment or bond, and watching your beloved wife taking another man's dick into her holiest of holies?