Rumer Willis' boyfriend Jayson Blair tries to lighten the mood... as actress appears downcast following Demi Moore's wild antics

umer Willis was not looking pleased.

The budding singer seemed stuck in a blue mood as she stepped out with boyfriend Jayson Blair in Venice, California, the day after her mother Demi Moore partied the night away with her new guy in Miami.
Rumer it said to be unhappy with her mother's behaviour, and wore her annoyance all over her face.

What's eating her? Rumer looked downcast and kept her arms crossed during an outing in Venice, California with her boyfriend Jayson Blair, who tried to lighten the mood

Jayson was smiling and laughing away, while Rumer, who hid her eyes behind dark shades, kept her head down and her arms stubbornly crossed.
Even Rumer's attire looked somber. She wore a black blazer over a brown print blouse and faded black jeans, and her dark hair was pulled back in a messy ponytail.
Rumer has been forced in a difficult situation when it comes to her mother, with Rumer acting like the grown up.

So down: Rumer looked miserable and her mother Demi Moore's partying had a lot to do with it

He's so happy: Jayson was smiling and laughing the whole time, but it was having little effect on somber Rumer

While Demi was raising eyebrows with her wild antics in Miami, it was an altogether different scene for the more subdued Rumer.
The 50-year-old's eldest child spent a quiet night at home in Los Angeles.
In a picture posted on her Instagram page on Wednesday night, the sensible aspiring singer, 24, was tucked up in bed with one of her beloved dogs.

Quiet night in: Rumer posted this picture on Instagram on Wednesday evening

Rumer said the pictured was taken by her 'handsome man', meaning her boyfriend Jayson.

The brunette had touched down at LAX just hours earlier after a trip to Europe to attend a Mon Cheri party in Munich.
Meanwhile her mother was playing the party girl at the Chanel Beachside Barbecue with fellow guests Lenny Kravitz and George Clooney's girlfriend Stacy Keibler.
The Charlie's Angels actress, who has struggled to cope in the wake of her split from husband Ashton Kutcher last year, raised eyebrows with her bizarre antics.

Home sweet home: The aspiring singer arrived back in LAX on Wednesday afternoon after a trip to Europe

Demi's rumoured new beau American art dealer Vito Schnabel, 26, was at the event.

The pair didn't pose up together, but were rumoured to have indulged in a passionate PDA away from the cameras.
Rumer, who has two younger siblings Scout, 21, and Tallulah, 18, is said to be unimpressed with the actress's toyboy romance.

'She was pretty annoyed to hear any of it because all of them know Vito,' a source tells America's People magazine. 'They have friends in common. It's too close to home.'

Going wild at 50: Demi Moore let loose as she partied with friends including Lenny Kravitz at the Chanel Beachside Barbecue on Wednesday night

Not happy: Rumer is said to be 'annoyed' by Demi's rumoured romance with Vito Schnabel, 26, pictured right on Wednesday

Demi's relationship with her girls has been under strain this year, with sources saying they 'don't want to deal with the drama'.
The Striptease star ended her marriage in November 2011 amid claims of Ashton's infidelity.
In January she was rushed to hospital following a binge on nitrous oxide in January and later entered rehab.
Ashton, 34, is now dating his former co-star from That 70s Show, Mila Kunis.

Demi's dance moves: The Striptease star put on a show for Lenny while Stacy Keibler stood nearb