London, April 11 (IANS) Singer Bobby Brown is upset with ex-wife Whitney Houston for not signing off a DVD release of his reality show "Being Bobby".Houston, who was prominent in the show, was not always portrayed positively so she does not want to give permission to Brown to go ahead with the sales, contactmusic.com reports. This is adding to the strain on his finances.

H e said: "Whitney blames the show for ruining her career and she won't sign off on the contract to release the DVD. There's a lot of money to be made, but, because she won't cooperate, we'll never see it. I have a serious problem with that because it affects my income."

Brown has slammed the 44-year-old singer in his biography too.

Pagesix.com reports that Brown in his autobiography "Being Bobby Brown: The Whole Truth and Nothin' But", spills dirty details on Houston's drug abuse and hints at her bisexuality.

And lately, her much younger ex-lover, the 27-year-old Ray J has penned a song slamming Houston's sex life.