Olivia, who is now Olivia Bowen, told the publication, “There are two sides to every story. I just guess we haven’t been that close for a while and I hadn’t seen it.
“She missed a few things and I didn’t see her for weeks and months on end, to the point where, when it came down to it, logistically it was impossible to get her dress fitted."
Revealing the pair haven't had a 'big fallout', Olivia then added, “When I asked her to be my bridesmaid I thought we were close, and then sadly we drifted apart, there was no big fallout or anything. It’s just life, priorities change and people come and go."
See which celebrities announced their engagement in 2018:
Olivia Buckland reveals REAL reason she dropped Cara de la Hoyde as her bridesmaid
2 of 17
Rio Ferdinand and Kate Wright
Rio Ferdinand popped the question to former TOWIE star Kate Wright whilst the couple were on holiday in Abu Dhabi. The former footballer made the moment extra special by including his three children.
Helen Flanagan and Scott Sinclair
Celtic FC footballer Scott Sinclair proposed to Coronation Street actress Helen Flanagan in Disneyland, just weeks before the couple's second child was due to arrive.
Ed Sheeran and Cherry Seaborn
Pop superstar Ed Sheeran asked his long-term girlfriend Cherry Seaborn to marry him in January. He wrote on Instagram, 'Got myself a fiancé just before new year. We are very happy and in love, and our cats are chuffed as well xx' sic
Caroline Flack and Andrew Brady
Despite only being together for a number of months, former Celebrity Big Brother star Andrew Brady popped the question to Love Island host Caroline Flack in April.
Chris Zylka and Paris Hilton
American actor Chris Zylka proposed to Paris Hilton during a romantic skiing trip in Aspen in January.
She wrote on Instagram, 'I said Yas! 👰🏼💅🏼💍💎 So happy & excited to be engaged to the love of my life. My best friend & soulmate. Perfect for me in every way. So dedicated, loyal, loving & kindhearted. I feel like the luckiest girl in the world! You are my dream come true! Thank you for showing me that fairytales do exist.😍'. sic
Lisa Riley
Loose Women star Lisa Riley announced her secret boyfriend had proposed to her in May. Sharing a photo of herself to Instagram, Lisa wrote, 'Yes I can now confirm the rumours are true... I have got engaged... My soul mate and best mate and love of my life Al is the best thing to have ever happened to me... We have absolutely NO date set for ANY wedding day, just happy together... Zero fuss, just firmed our togetherness😘.' sic
Lea Michele and Zandy Reich
Glee actress Lea Michele confirmed her boyfriend Zandy Reich proposed to her, showing off her stunning diamond ring on Instagram.
Vogue Williams and Spencer Matthews
After meeting on The Jump, former Made In Chelsea lothario Spencer Matthews popped the question to his model girlfriend Vogue Williams.
The couple later married in a private ceremony before welcoming their baby boy.
Jade Ewen and Daniel de Bourg
Sugababes singer Jade Ewen revealed to her fans that her actor boyfriend Daniel de Bourg had proposed to her on Valentine's Day.
Ariana Grande and Pete Davidson
Pete Davidson confirmed he and Ariana Grande were engaged in an interview with Jimmy Fallon.
However, just a few months later, the pair announced their split in October.
Justin Bieber and Hailey Baldwin
Justin Bieber reportedly proposed to Hailey Baldwin whilst on holiday in the Bahamas. Then, in November, Justin and Hailey CONFIRMED they'd tied the knot when the model changed her name to 'Hailey Baldwin' on Instagram.
Oliver Proudlock and Emma Louise Connolly
Made In Chelsea star Oliver Proudlock popped the question to his model girlfriend Emma Louise Connolly. Proudlock proposed as the pair celebrated their four-year anniversary in Sweden.
Ellie Goulding and Caspar Jopling
Ellie Goulding and Caspar Jopling announced their engagement in August 2018 by taking out an advertisement in The Times newspaper which read, 'Mr C.W.F. Jopling and Miss E.J. Goulding. The engagement is announced between Caspar, son of The Hon Nicholas Jopling of Yorkshire and Mrs Jayne Warde-Aldam of Yorkshire, and Elena, daughter of Mr Arthur Goulding of Hertfordshire and Mrs Tracey Sumner of West Midlands.'
Leona Lewis and Dennis Jauch
Leona Lewis hinted that she and her boyfriend of eight years Dennis Jauch had gotten engaged by showing off a ring on that finger in an Instagram Story whilst they were on holiday in Puerto Rico.
Ryan Libbey and Louise Thompson
Made In Chelsea stars Ryan Libbey and Louise Thompson announced their engagement in August. Ryan popped the question whilst the pair were on holiday in LA.
Ollie Locke and Gareth Locke
Made In Chelsea star Ollie Locke announced his engagement to boyfriend Gareth Locke in September. The pair had been friends for over 10 years before realising they were perfect for each other.
Rio Ferdinand and Kate Wright
Rio Ferdinand popped the question to former TOWIE star Kate Wright whilst the couple were on holiday in Abu Dhabi. The former footballer made the moment extra special by including his three children.
Helen Flanagan and Scott Sinclair
Celtic FC footballer Scott Sinclair proposed to Coronation Street actress Helen Flanagan in Disneyland, just weeks before the couple's second child was due to arrive.
Ed Sheeran and Cherry Seaborn
Pop superstar Ed Sheeran asked his long-term girlfriend Cherry Seaborn to marry him in January. He wrote on Instagram, 'Got myself a fiancé just before new year. We are very happy and in love, and our cats are chuffed as well xx' sic
Caroline Flack and Andrew Brady
Despite only being together for a number of months, former Celebrity Big Brother star Andrew Brady popped the question to Love Island host Caroline Flack in April.
Chris Zylka and Paris Hilton
American actor Chris Zylka proposed to Paris Hilton during a romantic skiing trip in Aspen in January.
She wrote on Instagram, 'I said Yas! 👰🏼💅🏼💍💎 So happy & excited to be engaged to the love of my life. My best friend & soulmate. Perfect for me in every way. So dedicated, loyal, loving & kindhearted. I feel like the luckiest girl in the world! You are my dream come true! Thank you for showing me that fairytales do exist.😍'. sic
Lisa Riley
Loose Women star Lisa Riley announced her secret boyfriend had proposed to her in May. Sharing a photo of herself to Instagram, Lisa wrote, 'Yes I can now confirm the rumours are true... I have got engaged... My soul mate and best mate and love of my life Al is the best thing to have ever happened to me... We have absolutely NO date set for ANY wedding day, just happy together... Zero fuss, just firmed our togetherness😘.' sic
Lea Michele and Zandy Reich
Glee actress Lea Michele confirmed her boyfriend Zandy Reich proposed to her, showing off her stunning diamond ring on Instagram.
Vogue Williams and Spencer Matthews
After meeting on The Jump, former Made In Chelsea lothario Spencer Matthews popped the question to his model girlfriend Vogue Williams.
The couple later married in a private ceremony before welcoming their baby boy.
Jade Ewen and Daniel de Bourg
Sugababes singer Jade Ewen revealed to her fans that her actor boyfriend Daniel de Bourg had proposed to her on Valentine's Day.
Ariana Grande and Pete Davidson
Pete Davidson confirmed he and Ariana Grande were engaged in an interview with Jimmy Fallon.
However, just a few months later, the pair announced their split in October.
Justin Bieber and Hailey Baldwin
Justin Bieber reportedly proposed to Hailey Baldwin whilst on holiday in the Bahamas. Then, in November, Justin and Hailey CONFIRMED they'd tied the knot when the model changed her name to 'Hailey Baldwin' on Instagram.
Oliver Proudlock and Emma Louise Connolly
Made In Chelsea star Oliver Proudlock popped the question to his model girlfriend Emma Louise Connolly. Proudlock proposed as the pair celebrated their four-year anniversary in Sweden.
Ellie Goulding and Caspar Jopling
Ellie Goulding and Caspar Jopling announced their engagement in August 2018 by taking out an advertisement in The Times newspaper which read, 'Mr C.W.F. Jopling and Miss E.J. Goulding. The engagement is announced between Caspar, son of The Hon Nicholas Jopling of Yorkshire and Mrs Jayne Warde-Aldam of Yorkshire, and Elena, daughter of Mr Arthur Goulding of Hertfordshire and Mrs Tracey Sumner of West Midlands.'
Leona Lewis and Dennis Jauch
Leona Lewis hinted that she and her boyfriend of eight years Dennis Jauch had gotten engaged by showing off a ring on that finger in an Instagram Story whilst they were on holiday in Puerto Rico.
Ryan Libbey and Louise Thompson
Made In Chelsea stars Ryan Libbey and Louise Thompson announced their engagement in August. Ryan popped the question whilst the pair were on holiday in LA.
Ollie Locke and Gareth Locke
Made In Chelsea star Ollie Locke announced his engagement to boyfriend Gareth Locke in September. The pair had been friends for over 10 years before realising they were perfect for each other.
Rio Ferdinand and Kate Wright
Rio Ferdinand popped the question to former TOWIE star Kate Wright whilst the couple were on holiday in Abu Dhabi. The former footballer made the moment extra special by including his three children.
Meanwhile, fans of Olivia and Alex are gearing up to see moments from their big day on their brand new TV show, Alex and Olivia Said Yes!.
The show, which will air on TLC on 28th September, will show both Olivia and Alex planning their big day, including picking the dress, the cake, the food and the venue. It's also set to show some of the couple's special day as they say their vows.
We can't wait! 👰
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