A friend of David Miliband has told me that he is contemplating not running for the shadow cabinet - a decision he must make by this Wednesday.
Both privately and publicly the man who was defeated for the Labour leadership has refused to answer journalists' questions about what he will do next. Colleagues insist that he has yet to make up his mind.
David spent most of today away from the conference with his wife Louise contemplating his defeat.
After reports that he'd left Manchester altogether, he returned to the bar of the main conference hotel insisting that he wanted to do nothing to distract from his brother Ed's first full day as party leader and joking that he'd had a nice day - enjoying a sleep-in and not having to write a speech.
His friend says that if David chooses not to stay in front-line politics - and at this stage nobody knows, perhaps not even the man himself - it will not be because he is sulking but because he wishes to give his brother the space he needs and to bring the Miliband pyschodrama to an end.
The news that David Miliband is even contemplating stepping aside from front-line politics is likely to lead to both his friends and his recent opponents urging him to stay the course.