Police are continuing to investigate the disappearance of chef Claudia Lawrence, a year after she went missing.
The York University chef is thought to have disappeared at around 5.30am on 18 March 2009, after she left home with no money, cards or passport to walk three miles to her job as a chef at the university.
Last week police said they wanted to speak to a "mystery boyfriend" the chef spent the night with two days before she vanished.
They said that she was also involved in a long-term, casual sexual relationship with another man when she vanished. That man was not believed to be the man Lawrence was with, nights before she went missing.
Lawrence's father Peter said the new information about his daughter's relationships had come out "far too late".
Meanwhile, her sister Ali Sims appeared on GMTV to call for anyone in a relationship with Claudia, whose private life was described by police as ‘complex and mysterious', to come forward even if it meant compromising a current relationship.
Police have so far taken 3,000 witness statements, searched 240 properties and received 1,270 calls to the incident room.
Despite the fact that no clues have been found as to what happened to her, her disappearance is being treated as suspected murder.
By Neil Gerrard
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