Mel, who also believes O.B., gets evidence of Clare cheating on Max with Warren from CCTV footage in Evissa. After O.B. and Mel threaten Clare and are about to leave the Dog to speak to Max, the pub was destroyed by Sam Owen. O.B. discovers Mel's body and when he tries to help Sophie through the flames he is knocked out with a brick by Sam. The explosion leaves O.B. hospitalised and kills Mel, Sophie and three others. Whilst in hospital O.B. is threatened by Clare before she steals the evidence of her relationship with Warren. O.B. briefly dates Carmel McQueen but O.B. ends the relationship after he realises he isn't over Mel. Max has a heart attack and when O.B. goes to see him at hospital he is told to leave. Clare stops anyone visiting Max at Christmas so O.B. visits him when she isn't home. Clare returns before O.B. can take Max to hospital after she'd been tampering with his medication. Clare leaves for the countryside, so she could slowly kill him by tampering with his medication again. Clare tells Max that Tom has fallen into an icy lake, so Max dives in. O.B. arrives before Max drowns and punches Clare before diving in to save Max. O.B. and Max rekindle their friendship. In summer 2007 Max and O.B. open MOBS. O.B. shoves Clare against a wall after and threatens to kill her after she insults Mel and Sophie. O.B. becomes a suspect in the attempted murder of Clare after she is pushed off a balcony. He is questioned by the police, but released due to insufficient evidence. On 29 June 2007, O.B. attempts to kill Clare in hospital but is interrupted by a police officer. In September, the culprit is revealed to be Justin Burton, who had overheard Clare's remarks about his sisters.