'I'm hurt she hasn't reached out to me': Meghan Markle's wheelchair-bound half-sister slams Harry's girl for charity work, saying 'humanitarianism starts at home' - after revealing they haven’t spoken for NINE years

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The half-sister of Meghan Markle has defended plans for a new 'tell-all' book - and slammed her famous sibling for not contacting her after she was diagnosed with a serious illness.

Samantha Grant, 52, told Australian radio show hosts Hughesy and Kate that she had been left 'hurt' by the fact that divorcee Markle, 35, who has been dating Prince Harry since last summer, hadn't been in touch for nine years despite knowing about Grant's MS diagnosis. 

Despite revealing earlier this year on Twitter that the title of her new book would be 'The Diary of Princess Pushy's Sister', she denied that she planned to dish the dirt on Meghan, saying instead it would be about her 'bi-racial experiences'.

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'Hurt': Samantha Grant, 52, has defended her decision to write a book about her life growing up with her younger half-sister Meghan Markle. The mother-of-three, who's in a wheelchair because of MS, told Australian radio hosts Hughesy and Kate that she was surprised Meghan hadn't been in touch about Grant's medical condition, considering her public charity work

Grant, who hasn't spoken to her younger half-sibling for nine years, said she thought Markle was 'furious' after hearing that the title of Grant's book was likely to be 'The Diary of Princess Pushy's Sister'. Markle, 35, has been dating Prince Harry since last year

Grant, who works as a mental health counsellor, told Australian radio that she's being portrayed as a 'gossipy little peer' by the media when in fact she's merely a 'an older sister'

The Mother-of-three, who uses a wheelchair and has multiple sclerosis, also revealed that the last time she saw her half-sister - the siblings share the same father, Thomas Markle - was at her graduation in 2008. 

She told the Australian radio hosts that she was particularly upset that Meghan hadn't acknowledged her medical condition despite being heavily involved with charities. 

Grant offered: 'It's not about the money, it's more about general consideration and support.'

She added: 'Humanitarianism begins at home. That doesn't mean monetary, it means reaching out.'

Continuing, she said: 'I am in a wheelchair and she did meet Harry at the Invictus Games. I felt like it was an opportunity to be a voice and bring a lot of awareness to it [disability]. 

 

Outburst: This was the lengthy Twitter announcement for Samantha Grant's literary project 

'I think she believed the tabloids that I was writing a 'tell-all' book. 

'That's rubbish. It's a book about my bi-racial experiences and evolution. It has nothing to do with talking about Megan. 

'That's her personal business. I'm an older sister, not her gossipy little peer. And I would never judge her about those things, that would ruin her private life.

Grant has previously told reporters that the Queen's grandson would be 'appalled by what she's done'.

She also claimed her sister was a ‘shallow social climber’ who would watch programmes showing the Royal Family as a child and had a ‘soft spot for gingers’. 

Grant said that Markle does remain in contact with their father Thomas but that she hasn't contacted her directly because she's 'furious' about the prospect of her half-sibling dishing the dirt in a book. 

Close: Meghan posted a picture of herself with her mother, yoga teacher Doria, at her graduation 

Grant said she hadn't heard from the palace in response to her planned book about being 'Princess Pushy's Sister'

Grant, a mother of three, is the daughter of lighting technician Thomas Markle Sr, 72, of Los Angeles, California, and his first wife Roslyn.

She has a full brother in Thomas Jr and a half-brother named Bobby Lucero, 35, also of Albuquerque, New Mexico, who is Roslyn's son from a subsequent relationship.

Meghan, who has been dating Prince Harry since meeting him in Toronto last May, is Grant's half-sister from their father's marriage to yoga teacher Doria, 60.

The rest of the Markle family have been quick to distance themselves from the book. The move has sparked outrage among family members, with Grant's mother Roslyn branding her claims 'bulls***' and brother Thomas Jr telling her to 'leave Meghan alone already'.

Roslyn also told DailyMail.com that far from being proud of her 'bi-racial family', Grant used to tell friends that her step-mother Doria Ragland 'was the maid because she's black'.

Roslyn, 71, of Albuquerque, New Mexico, told DailyMail.com: 'She trashes Meghan, trashes me, her dad, her brothers – she's just been trashing everybody in her life forever.

'I am very serious when I say she has dogged on Meghan forever. She has never liked Meghan and she's always been jealous of her.'

She added: 'When Tom Sr [Meghan's father] married Meghan's mom, Samantha told all her friends that Doria was the maid because she's black. She is not a nice person.'

Thomas Jr, 50, of Grants Pass, Oregon, told DailyMail.com that Grant has spent her whole life being 'a pain in the a**' and branded her pursuit of Meghan 'ridiculous'.

He said: 'She's just doing it because she's got nothing better to do and it's what she's always done. Her whole life has just been about being a pain in the a**.

'It's why nobody talks to her and hasn't for a long, long time. Leave Meghan alone already – it's ridiculous.'