<Tr> <Td_colspan="7"> Amelia begins her fifty - day rehab stint, and begins bonding with a fellow patient, Hailey (Debby Ryan). Addison and Violet begin to find ways that Addison can get pregnant, while Violet tries not to see everything that is wrong with her marriage . Cooper ends up missing Mason's first school play when one of his patients needs a blood transplant; Hailey tries to convince Amelia to accept that she didn't kill Ryan, that the drugs did . Addison's IVF fails, and when she tries to go for another round, she collapses from complications from the first IVF treatment . Violet realizes that Pete won't leave her and asks him to make a decision if he still loves her; After a week she finds that he doesn't love her anymore and leaves, but doesn't want to make anything difficult for Lucas . Sam tries to talk Addison out of another round of IVF but is too late, and she says that after this round she won't have anymore eggs left, and won't be able to do IVF anymore . All of the doctors arrive at the rehab facility as family is required to come, and Amelia said they were all family, and she tries to apologize for everything she did . Amelia returns home on Thanksgiving, while Addison is in the bathroom awaiting the results of her pregnancy test . </Td> </Tr> <Tr> <Th> 86 </Th> <Td> 10 </Td> <Td> "Are You My Mother?" </Td> <Td> Ed Ornelas </Td> <Td> Elizabeth J.B. Klaviter </Td> <Td> January 5, 2012 (2012 - 01 - 05) </Td> <Td> 7.71 </Td> </Tr> <Tr> <Td_colspan="7"> Addison seeks out adoption when she finds out that there is no longer a chance of her getting pregnant, while Cooper tries to find out ways to discipline Mason when he finds that Mason shoplifted from a store . Violet and Pete decide that Pete should move out of the house, angering Pete because he wants to be in Lucas' life 24 / 7 . Jake and Violet work with a three - person couple that want to get pregnant, but things get complicated when one of the women can't get pregnant, making the three of them decide on what is right for their relationship . Addison meets with a woman who is seeking someone to adopt her baby; later that day Addison gets paged to the delivery room where the woman gives birth; Charlotte takes Sheldon to the shooting gun range to help him get over Amelia, while she tries to convince Amelia that she's ready to get back to work . Addison is heart broken when the woman doesn't pick her to adopt her baby; Amelia begins to realize how much she hurt everyone she loved . Violet and Pete realize that they're going to have to adjust to being divorced; While Addison and Sam decide to break up . </Td> </Tr> <Tr> <Th> 87 </Th> <Td> 11 </Td> <Td> "The Standing Eight Count" </Td> <Td> Scott Printz </Td> <Td> Zahir McGhee </Td> <Td> January 12, 2012 (2012 - 01 - 12) </Td> <Td> 6.55 </Td> </Tr>

When does addison find out about the plane crash