Dorinda's birthday dinner comes to an unappetizing halt with Bethenny and Heather in a screaming match, capping off a conflict-filled Berkshire weekend. Back in New York, Ramona is thrilled to have Avery home so they can reconnect, and Avery surprises Ramona with her adult perspective on the situation between her parents. It's all business when Bethenny invites Sonja to her brand summit meeting to give Sonja some insight into what it takes to run a successful brand, while Kristen invites Carole to contribute some color and branding ideas for her new nail polish line.