(Cover) - EN Showbiz - Kelly Osbourne has reignited her feud with her former fianc.

The TV star was engaged to model Luke Worrall from October 2009 to June 2010, with the pair splitting amid reports he had been unfaithful.

The break-up was acrimonious and the former couple soon entered into a war of words on social networking site Twitter. Kelly slammed Luke for being a liar and claimed he'd cheated on her with men and women.

It was thought the pair had settled their differences and cut contact with each other, but Kelly has now shown the situation is far from resolved. She has publicly rebuked Luke on Twitter, after he laughed when another user asked why he had ever dated her and suggested the best thing he'd ever done was to leave her.

"@luke_worrall you've made it very clear u only dated me 4 my life style but sh*t tweets about me the day im @ a funeral u have hit a new low," she wrote.

"@luke_worrall it was fine when my Kellyphant ass was paying 4everything wasn't it? i just didn't think u could get much lower but u did #wow (sic)."

Kelly was referring to the funeral of Amy Winehouse, which took place in London yesterday. The pair were good friends and Kelly flew to the UK to attend, even fashioning her hair into a beehive in tribute to the 27-year-old jazz singer.

Kelly has spoken of how hard she's finding it to cope with Amy's death, calling the funeral the "saddest day of her life".

It seems the comments from Luke were the final straw for the star, who then told fans how tired she was of people's negativity.

"dont think i want a twitter page anymore the fact that ppl get joy from being mean 2 me makes me sick whats the point? there is to much evil (sic)," she wrote. (C) Cover Media