The couple, who got engaged on New Year's Eve in 2009, actually split up in the autumn, but have kept the news under wraps until now.
Heidi, 28, posted on Twitter: "Very sadly, after eight years together, myself and Dave decided to separate a few months ago.
"I wish him nothing but the best in life x."
And a spokesperson for Dave, 33, said: "Dave Berry announced today that his engagement to partner Heidi Range has been broken off.
"Mr Berry announced the news today although the couple agreed to separate in the Autumn.
"The split is amicable and no third parties are involved and he will make no further statement on the issue."How long were they together?
Only about four or five months, but it seemed like longer because they did so much press about how happy they were together.
Who dumped who?
Rav claimed he had to "draw a line under it" after discovering that the relationship "wasn't the genuine thing I thought it was".
Were there tears?
The big guy was reported to be devastated and even had to take time off work. Chantelle was remarkably quiet about the whole business.