Teacher who left career to marry pupil has split up with her Mr Forrester, then aged 44, had not long been reinstated to his post as head of music at Kincorth Academy after being investigated over an alleged affair with another teenage pupil while still married to his first wife. He was cleared of any wrongdoing and allowed to return to his senior post under supervision. However, when Claire joined his class and the choir, the pair started an affair. Their relationship was said to have blossomed after a trip to London but the couple claimed they did not start a sexual relationship until Claire turned 16. At first they chatted through mobile phone messages and this evolved into a relationship. Mr Forrester quit his £30,000-a-year post at the school in Aberdeen so they could be together and the girl abandoned her studies and ran away from home. They moved into a flat in Torry in February 2005 and got engaged two years later. Officials at Aberdeen City Council reported Mr Forrester to police, sparking an investigation that resulted in him being charged under the Sexual Offences Act. However, the Crown Office decided the case was "not in the public interest" and did not prosecute. The couple married in November 2010 at Ferryhill Church. A children's charity called the wedding an "aberration" and said it went against "moral codes of not only his profession, but of society." The couple settled in the nearby village of Auchenblae with their two children, Erin, born in December 2005, and Andrew, who was born in January 2008. Mrs Forrester's mother, Shelagh Douglas, disapproved of the relationship from the start, saying her daughter had "a lot of growing up to do." She said: "I don't care if my daughter and John are still together in 20 years' time, I have never accepted the relationship and never will." They said they maintained their relationship, despite living in a disapproving community, because they loved each other. Mr Forrester told a 2005 TV documentary, called Sleeping with Teacher: "We knew it wasn't going to be easy and it hasn't." Since the split, it is understood Mr Forrester has been staying for two weeks in a nearby property once owned by his wife's grandmother. He has reportedly been spotted picking up his son from the home the couple once shared and taking him to school near Aberdeen. The former teacher, who turns 50 this year, became secretary of the local parent-teacher council at Auchenblae Primary School after fellow parents voted him into the role.