Meghan Markle's romance 'created rifts' reveals her half-sister

"It created some rifts with us, but people across the pond think we're mean people saying bad things about her, but that's not the case," she said in an interview with Us Weekly.

Markle's half sister Samantha Markle (also known as Samantha Grant), revealed that the pair had not spoken since 2008, but that she is happy for her sister.

"It was really exciting for me. I am so happy for her."

"[My father is] very excited, just like the statement he released. He is truly happy about their union, but what's important if it's Prince Harry or anyone else, you want to make sure someone you love gets married, that they know enough about the person they're marrying and they've had a while to get to know each other," she said.

"So my father and I are both so excited because they've had a long time to get to know each other and then know what they want to do. That's really important for us," the half-sister added.

The author and mother of three has also dismissed rumours that her new book, The Diary of Princess Pushy's Sister, is about Markle.

"Everyone assumes my book is a slamming tell-all, which it is not. Now it can be egg in their faces and everyone can say what they think. My book is not a small piece and it is important historically. I wasn't in a position to release what it was about. They assumed the worst and I think that's unfair and our family members who spoke about my book shouldn't be doing so."

While Samantha says it is unlikely she will be invited to the wedding, she hopes to attend.

"I would love to go and show her how much I love her and how happy I am about this and for her," she said.

On the woman's Twitter, she has joked about crashing the royal wedding if she isn't invited.