Why can't New Jersey and Pennsylvania be friends?

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Activists unite on the Benjamin Franklin Bridge, which connects Philadelphia, PA. and Camden, N.J. (AP Photo/Pat Rogers)

Recent online sparring between New Jersey and Pennsylvania has gotten ugly.

First, PennLive.com polled Pennsylvanians about what they thought of New Jerseyans. Some Keystone Staters expressed distaste for their neighbors across the Delaware, claiming they are “bad drivers,” “dirty” and “not laid back.”
These jabs prompted NJ.com to write an article that asked readers: “What are some of the things that annoy you about our neighbor?” New Jerseyans retaliated, with insults to the Pittsburgh Pirates, Philadelphia streets, and Amish country.
Why can’t the two states be friends? Robert Frost wrote that “good fences make good neighbors.” Since a dividing fence is impossible, why not try Gov. Christie's approach? Blame New York. After all, it's trashy New Yorkers who are infiltrating “Jersey Shore,” and the state can’t even house its own football teams.
New Jersey and Pennsylvania should set their differences aside, and focus on bashing New York. Hey, it has much worse traffic.