Hollywood heartbreak! Young lovers Rob Kardashian (Kim K’s younger brother) and pop singer Rita Ora have calle it quits a few months after they went public about their relationship.

A source tells The Sun ’It’s really sad – they really liked each other but with him living in LA and her over in London, it was becoming impossible to maintain a relationship. They’d only decided to go public with the romance a couple of months ago so as not to put any pressure on themselves, but they’ve already split. Rob has now deleted everything on Twitter that reminds him of Rita’.

Rob is however taking it a bit more personal ranting on micro-blogging site Twitter over his ‘troubled relationship’ with the British singer-songwriter and actress; claiming his ex-girlfriend had cheated on him with more than 20 men!

Rob poured out his feelings on the breakup today, deleted the original tweets and reposted them!

‘When a woman cheats on you with one man I can live with that. People make mistakes, trust me. I have forgiven numerous times…But when a woman disrespects herself by messing with more than 20 men all while being in a relationship with a Faithful man… This is a lesson to all the young women out there to not have unprotected sex with multiple men especially while in a relationship‘, the 25-year-old tweeted.

 Rita Ora released her debut album ‘Ora‘ in August 2012.