 Following a short @-@ lived relationship with physiotherapist Justin Fuller ( Ben Richards ) , Donna moves on to date hospital manager Bradley Hume ( Scott Adkins ) . Their relationship is terminated by the discovery that Bradley has been running a pharmaceutical scam , resulting in the death of one of Donna 's patients due to a morphine overdose . After entering into a scratchcard syndicate at work , Donna wins £ 20 @,@ 000 . She refuses to share her winnings with the others and resigns from her job , making plans to travel to Australia . On her last day , a patient with bi @-@ polar disorder steals and re @-@ distributes her money . Donna misses her flight , and is forced to remain in Holby . She goes on to begin an affair with consultant general surgeon Michael Spence ( Hari Dhillon ) , despite the fact he is married . When Michael 's wife Annalese ( Anna @-@ Louise Plowman ) begins working at the hospital as a locum anaesthetist , she suspects that Michael has been unfaithful to her and confronts Donna , who confesses the affair and apologises profusely . 
