But despite Ms Gayther engaging in some online bitter online exchanges, the Metropolitan Police say they must hear from her in person before ending their investigation.Last night she posted on Facebook: “I am not missing. Before you call me a selfish b—h don’t assume me and my mum share the same bond that you do because that would be wrong.”This is a major over reaction and way too Jeremy Kyle for me. I haven’t seen my mum since September and we don’t have each other’s phone number.”We aren’t really in each other’s life and that really saddens me that we don’t have that bond but there’s a reason for that. I missed the last coach home to Oxford shot me.”Earlier posts by the King’s College London student suggest a family row may have prompted her absence from the family over Christmas.These include a blog post titled “Should you divorce your mother?”, and another saying “enmeshment mother enmeshment”, referring to an obscure social concept whereby over-concern between family members leads to a loss of personal development. A university student is facing a torrent of online abuse for sparking a police investigation after she failed to turn up at her mother’s home for Christmas.Isabel Gayther is being urged to contact police to prove she is safe and well after apparently posting messages questioning what the fuss was all about.The 21-year-old King’s, who was last seen at her halls of residence in South East London shortly before noon on December 24, was due to spend Christmas with her family, who reported her missing on Boxing Day. Earlier on the forced described her disappearance as “extremely out of character” and that her family were “extremely concerned for her safety and wellbeing”.However, another Facebook comment from Ms Gayther appears to suggest her behaviour is not entirely out of character.She said: “Oh god how embarrassing, this is the second time my mum has filed a missing persons report, for a missing person I just keep coming back…errrr”.Police are continuing to urge anyone with information regarding Ms Gayther’s whereabouts to contact them on 101. This is extremely out of character for her and officers and her family are extremely concerned for her safety and wellbeingMetropolitan Police The message followed a comment apparently from Ms Gayther which said:“A day and half I’m out of contact and this is what happens??? I AM NOT MISSING peace,” the message reads.However, dozens of people have responded branded her “selfish” for causing her parents worry.A spokesman for the Metropolitan Police said: “We are aware that this morning, Tuesday 27 December, messages have been sent via Isabel’s Facebook account.”At this stage, officers are yet to speak with Isabel.”As such, a police investigation continues with the aim of establishing that she is indeed safe and well.” Want the best of The Telegraph direct to your email and WhatsApp? Sign up to our free twice-daily Front Page newsletter and new audio briefings.