In fairness, she had to go public with something resembling a statement after Calvin blabbed all over Twitter.

The 23-year-old tweeted: "I don't usually address speculation (*ahems* unlike Calvin) but I've had an incredible time with Calvin, and I will treasure the memories. I've moved on so I hope people will respect that and do the same." We will once you stop tweeting stuff like that.

Calvin used Twitter last week to announce the couple had split. Since then, it's been suggested he instigated the split and his former girlfriend was left embarrassed when he published the message as she thought they might be able to resolve their differences.

A source said: "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 couple first split in January for a couple of weeks after a huge row but despite getting back together their hectic schedules meant they rarely saw each other.

Rita had also been seen partying and cosying up to other men via Instagram and spent time been in Mexico with friends including the R&B singer Khalil Amir Sharieff, who was arrested in Miami with Justin Bieber earlier this year for drag racing. Hey, that didn't make him a household name so hopefully "cosying up to Rita" will.

The source said: "It was Calvin's decision to end the relationship. They had been arguing for months and had grown apart. She was constantly posting snaps of her with other groups of friends and her trip to Mexico and photos of her with Khalil were the final straw. Calvin likes more privacy than Rita and he hated the extra attention that came with being her boyfriend."