The announcement of Calvin Harris and Rita Ora of their split in Twitter reportedly shocked the "How Do We Do" singer. It also appears that she was "embarrassed" after the DJ dumped her in public, The Sun source says.

"Rita was left embarrassed when he tweeted that it was all over. She didn't think he was going to make the announcement, so she was shocked," the source was quoted saying.

The source said it was 30-year-old Calvin Harris who initiated the break-up after months of seemingly endless misunderstanding.

However, the "How Do We Do" singer thought they could still patch things up between them and was surprise upon learning that Calvin Harris dumped her via social media site Twitter.

E! Online said the Calvin Harris, Rita Ora split was announced on June 6 through Twitter, saying "To address speculation - myself and Rita ended our relationship some time ago."

"She is a beautiful, talented woman & I wish her all the best," the Scottish singer-songwriter added.

The source also claimed that the "How Do We Do" singer's Instagram posts with her friends were also the reason why Calvin Harris decided to end the two-year relationship.

Meanwhile, the producer and DJ's ex-girlfriend tweeted on Wednesday that she has moved on with the Calvin Harris, Rita Ora split issue and is now ready to "live forwards."

"I don't usually address speculation but I've had an incredible time w Calvin,& i will treasure the memories," the British singer wrote.

She even added, "Life can only be understood backwards but it must be lived forwards," saying that she had already moved on.

After Calvin Harris, Rita Ora Twitter split, the 23-year-old singer shared to her followers in Instagram her latest arm tattoo, the Daily Mail reported.

"We're gona be ballerinas when were 102!" the British pop star wrote in the photo caption. "@andacloud9 #iloveubestie @bangbangnyc free-hand drawn on. You beast! Love you my brother!" she wrote, showing a photo of her ballerina arm tattoo.