Uh-oh. Real Housewives of Orange County's Vicki Gunvalson and Brooks Ayers' relationship is looking rocky.In an upcoming episode of RHOC, rumors that Ayers is dating a porn star upset the blond reality star. And it appears things might not be going so smoothly off camera, either.This week, Ayers tweeted at Gunvalson, "My heart is very heavy because of you. The world doesn't revolve around you alone, especially when you're in a relationship."Then he added, "I should've known that you'd betray us for you. I did the opposite." Is this just a lovers' spat or something bigger?
