But the 22-year-old Hunger Games starlet has reportedly split from her boyfriend of two years, British actor Nicholas Hoult.
The pair met over two years ago on the set of X-Men: First Class and have been in a committed relationship since.
She even gushed that he was her "best friend" and her "favorite person" to be around.
But now Jen and the About a Boy actor are no longer a couple and are said to have grown apart, according to Us.
However, the breakup doesn't appear to have dampened her spirits and she was seen out on Thursday night with newly-single co-star Bradley Cooper dining at Hollywood sushi restaurant Katsuya together. He broke up with Zoe Saldana recently.
Bradley and Jen were very affectionate with each other earlier in the night at the Critics' Choice Awards.
Jen won Favorite Movie Actress at the recent People's Choice Awards, Best Actress in a Comedy for Silver Linings Playbook and Best Actress in an Action Movie for The Hunger Games.
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