Rosanna begins to realize that Carly is an alcoholic after finding several hidden bottles of alcohol at Milltown. Along with Craig, Parker, Jack and Janet, the group hold an intervention, hoping to persuad Carly to go to rehab. After Carly agrees, Rosanna promises that she will live at Carly's home and assist with household duties, while helping Craig run the vitamin water company he and Carly own. After continuing bickering between each other, Rosanna and Craig rekindle their romance behind Carly's back. When Carly returned from rehab in November, she catches Craig in an embrace with Rosanna and the two confess to an affair. Carly threw Rosanna out of her house and broke off her engagement to Craig. After being thrown out of Carly's house, she and Craig continued their relationship and planned to marry. After witnessing first-hand that Craig still had feelings for Carly and vice versa, Rosanna left Craig at the altar and left town for Germany. After hearing that Craig did not intend to run her off the road and that it was merely at the thought of losing Johnny, she confesses to Carly that she's been set free from Craig and their past.