Britney Tries To Will Herself into Parental Fitness

Demure is not a word I would typically apply to Britney Spears, but it's really what works best at describing the popwreck's face as she leaves Sur Restaurant in Hollywood Friday night. 

Was the Britster feeling sorrowful?  Feigning inner peace as part of her 'I'm ready to be a full-time mom again' schtick?  Or just suffering one of those 'f*ck-I-ate-too-much' food comas?

We may never know the answer to these burning questions.  But one thing we do know is that 24-hours later, Brit's frown was turned upside down.  For the first time in six months, the divorced mama got to spend a full night with Sean and Jayden. 

The toddlers were dropped off Saturday but, alas, K-Fed's messenger was back to reclaim the baby daddy's financial assets loved ones by 10 AM Sunday morn.  And, according to reports, the parting was sweet sorrow for our favorite trainwreck.

'Britney was very upset after the kids left,' a friend tells Us Magazine. 'She now does not know when she will get them next for an overnight. She complains it could be next week, or it could be three months.'

Oh, Brit.  Look on the bright side.  At least you didn't throw a manic fit and end up in the hospital again this time!