Libery Ross party hug kristen stewart cheating Rupert Sanders Libery Ross party hug kristen stewart cheating Rupert Sanders

Interestingly enough, it doesn't look like her adulterous husband Rupert was invited!

Liberty Ross hosted a birthday bash at the Sanders family's Los Angeles home on Saturday, and even though she's still reeling from the news that her husband cheated on her with Kristen Stewart, the 33-year-old model appeared to be in good spirits when she hung out with her daughter Skyla and other guests at the party, including the gentleman above.

Several members of Liberty's family live in Los Angeles, so while she's trying to work things out with her husband, she's been leaning to them for support. No word on whether the couple will get back together, but immediately after the story broke that Rupert had an affair with K. Stew, he said in a statement, "I am utterly distraught about the pain I have caused my family. My beautiful wife and heavenly children are all I have in this world. I love them with all my heart. I am praying we can get through this together."

Though Liberty has remained silent since the scandal broke, her brother Leopold reportedly told UK paper The People that the affair went on for months. Despite the fact that Kristen said it was "a momentary indiscretion," Leopold told the publication, "It was from the last half of filming and all through post-production, clear into last week."

What's even more damaging is that the director appears to be the one who chased after the young actress. “He was absolutely infatuated with her,” a source told RumorFix. “He was after her for months but she was just in love with her boyfriend. She never chased him, never pursued him. He is much older than her and took advantage of his position. She was never a victim but he absolutely was the one to go after her. It was pretty obvious what was going on.”

Will Liberty take her hubby back? Or will she kick him to the curb?