if your first girlfriend or boyfriend is in another post code or zip code then you can date another person in your same post/zip code
If your First girlfriend is in Brisbane and your in Sydney then you are able to go out with someone in your same post/zip Code or city without feeling bad. Known as the Post/Zip Code Rule
If you are currently married or have a partner, you are allowed to Pick up providing you are away from home and the postcode of that area begins with a different number to that of your home town.
Josh: I'm going away on holidays and i'm meeting up with a girl there.