
See extract below from interview with Briatore recorded on Autosport website
"Briatore has also said that the complaints from Piquet Jr extended beyond pure racing terms - as he revealed he was also accused by the
Brazilian of wrecking friendships he had.
"He [Nelsinho] has also heavily accused me of breaking his relationship with a friend of his. I don't want to be accused unfairly, so I want
to say that I did it because Nelsinho's father asked me to," explained Briatore.
"Nelsinho used to live with this gentleman: the nature of their relationship is unknown. His father was very worried about the relationship
Nelsinho used to have with this 50-year-old man. They used to live together, and his father asked me to intervene.
"I made this gentleman not come to races anymore, and I made Nelsinho move from Oxford to London in a building where I live, in order to keep him
under control.
"I was asked to by his father, and now Nelsinho accuses me of having even taken his friends away from him - I don't know what kind of
friends these are, but he accuses me of that."
Briatore's claims about Piquet come amid the surfacing of fresh details about the events of the day at Singapore and how he crashed his car on
purpose.
Obviously hell hath no fuy like a woman scorned !!

So Briatore is OK with interfering in Nelson Jrs private life. Cheek.
Sounds like someone else was interfering with Nelson's private.
Oh sorry, mis-read 
If he was ordered to crash at singapore, what are his excuses for all of his other pi$$ poor performances during his time with Renault?