Kelly Osbourne is "not dealing" with her split from Luke Worrall very well.

The TV star is struggling to come to terms with the fact her fiance - who she has dated for two years - cheated on her with another woman and is finding it difficult to stay positive about the situation.

In the early hours of this morning (15.07.10), she tweeted: "i am not dealing with this very well :( keeping your head up is not fun! going to bed thank god for tomorrow!(sic)"

The 25-year-old starlet's saddened note follows a series of other online posts, including one where she confirmed the split in an angry twitter post to a journalist who claimed it was ok for Luke to cheat because she was "frightening".

Kelly wrote to blogger Dan Brickley: "Thanx your a really sweet heart so what your saying is that im ugly so it was ok for him to cheat go f**k yourself!!!!!(sic)"

However, in a later message, Kelly's emotions seemed to have improved slightly.

She wrote: "you can take my heart but NEVER my sense of humor!(sic)"

This was followed by, "i have decided to comment through song and i believe En Vogue says it best!(sic)" alongside a link to a video of the R'n'B group's 90s hit 'My Lovin' (You're Never Gonna Get It)'.

The reality TV star - who is the daughter of Ozzy and Sharon Osbourne - recently admitted her shock at still being with the 20-year-old model.

She said: "I still can't believe we've been together for so long. Before meeting him, my longest relationship was about six months.

"I never really thought I'd find love or be with someone for long. But since meeting Luke at a party in London two years ago, we've never really been apart!"