Kristin Cavallari pretty much disappeared off my radar for a year. Now that she’s on The Hills, she’s back on it. What does that mean? Well, she can expect calls at 4 AM in the morning consisting of heavy breathing and a big gulp before the phone hangs up. Also, expect a mysterious, handsome stranger pacing back and forth on the sidewalk in front of her house shouting, “OMG! OMG! OMG!”over and over again.