Aaron is sentenced to a year in prison. Early on he is singled out by another prisoner, Jason, and develops a drug addiction to cope with the stress. Robert and Chas visit Aaron and are shocked at the changes. Robert is further dismayed when Aaron tells him to forget about him. Hurt over his husband's rejection, Robert gets drunk, destroys his and Aaron's home, and seeks comfort from Rebecca, telling her that he and Aaron are over. They sleep together, but Robert immediately regrets it the next morning. He tells Chas who furiously slaps him. The next time they visit Aaron, Robert nearly tells him what happened, but Chas covers for him. Aaron is released early after his appeal succeeds and Robert is excited to have him back. The two begin to repair their relationship when Robert learns that Rebecca is pregnant. He tries to keep the news from Aaron, and Rebecca's boyfriend Ross attempts to blackmail him into paying him to keep quiet about the baby, leading to a feud between the two of them. Robert admits his one night stand and Rebecca's pregnancy to Aaron. After some consternation, Aaron decides to forgive Robert and try to move on. Robert tries to force Rebecca to have an abortion, but she refuses. He wants nothing to do with the child but Aaron convinces him to go to an ultrasound where it is discovered that Rebecca is carrying a boy. However, Aaron's negative feelings about Robert, Rebecca, and the baby begin to impact him. He starts taking drugs, resumes self-harming, and even attacks Robert. Aaron later comes clean about his struggles and admits that he hates the baby. After an emotionally charged conversation, Aaron despondently ends their relationship, admitting that although he does love Robert he cannot be with him anymore. Giving Robert his ring back and telling him to go, the pair part ways. The next day, in spite of Robert attempting to show Aaron that they can still be together, Aaron admits that he doesn't want to be the needy angry person he is anymore and decides to visit Liv and his mother in Ireland to get away.