A prison officer struck up a romance with an inmate after becoming 'infatuated' with the convicted drug dealer, a court heard.Libby Shankland, 24, exchanged 14,000 phone calls and almost 5,000 text messages over four months with prisoner Adnan Ali, who used an illicit mobile phone while in jail.Her forbidden relationship with Ali, 23, was discovered when concerns were raised about G4S staff at HM Parc Prison in Bridgend, South Wales last year.Prosecutor David Pinnell said Shankland, who worked