UK singles using dating sites to find a new partner may be sad to hear that reality star Chantelle Houghton has split from her most recent boyfriend Rav Wilding. The couple, who announced they were dating last December, have parted ways after photographers witnessed them having a very public argument in London's Richmond Park. Initially the pair enjoyed a bottle of champagne, but the atmosphere turned sour after photographers snapped Wilding shouting at his crying girlfriend. Houghton, who was previously married to fellow Celebrity Big Brother contestant Samuel Preston, has publicly gushed about her feelings for the Crimewatch host on a number of occasions. However, Wilding confirmed the split through a post on his Twitter page. He said: "Wanted to clarify situation after speculation 2day. Sadly Chantelle & I are no longer in a relationship as I've had to draw a line under it." Wilding was previously engaged to footballer Rio Ferdinand's ex-girlfriend Lauren Alcorn.