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. 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!"