Ashton Kutcher hasn't spoken publicly about estranged wife Demi Moore since her health crisis began in January – but he has seen her, a source tells PEOPLE.

The Two and a Half Men star has visited since her hospital stay, but "they are not getting back together," according to the source.

He went because "he knew it was important to her daughters," says the source. Moore has three girls with ex-husband Bruce Willis. Daughter Rumer, 23, remains especially close with Kutcher despite his split from Moore.

Still, Kutcher has continued to move forward with his life. On Thursday night, he stepped out to help fete Two and a Half Men creator Chuck Lorre – just as multiple sources confirmed to PEOPLE that Moore has left treatment.

A clean-shaven Kutcher, 34, kept a low profile by skipping the press area and heading straight for his front-row table inside the Beverly Hills Hotel ballroom for the Television Academy's 21st Annual Hall of Fame Ceremony, sponsored by Grey Goose.

A serious shoulder injury has forced Alex O'Loughlin to take a long break from his hit TV series, Hawaii Five-O.

A spokesperson for the 35-year-old actor told E! that he will be receiving "supervised treatment for prescription pain medication".

Alex plays Lieutenant Commander Steve McGarrett on the classic '80s reboot, opposite Scott Caan, Daniel Dae Kim, and Grace Park.

According to CBS, his absence will not affect filming, as production on the second season of the show is ahead of schedule.

CBS’ The Big Bang Theory is at long last beaming up Leonard Nimoy.

Sources confirm to TVLine exclusively that the Star Trek icon will fulfill Sheldon’s (Jim Parsons) lifelong dream when he makes a cameo in the show’s March 29 episode. But there’s a catch: Nimoy will be heard, not seen.

According to an insider, Nimoy will speak to Sheldon, as Spock, in a dream sequence.

Sheldon’s obsession with Nimoy has been a recurring theme on the show. In a classic Season 2 episode, Penny gave him a napkin autographed by the sci-fi legend for Christmas. And in the show’s 100th episode last month, Sheldon received in the mail a life-size cardboard cut-out of Mr. Spock, but was horrified to discover it wasn’t the Nimoy version he ordered but the Zachary Quinto incarnation.

The Avengers is an upcoming American superhero film produced by Marvel Studios and distributed by Walt Disney Pictures1, based on the Marvel Comics superhero team of the same name. It is the sixth installment in the Marvel Cinematic Universe. The film is written and directed by Joss Whedon and features an ensemble cast, which includes Robert Downey, Jr., Chris Evans, Mark Ruffalo, Chris Hemsworth, Scarlett Johansson, Jeremy Renner, Tom Hiddleston, and Samuel L. Jackson. In The Avengers, Nick Fury, director of the peacekeeping organization S.H.I.E.L.D., recruits Iron Man, the Hulk, Thor, and Captain America to save the world from destruction.

Polly Parsons is a British television presenter. Polly was born in Bristol and as a child she loved dancing, singing, horse-riding and hockey. She attended Sacred Heart convent primary school and later Redland High for Girls in Bristol. After gaining A-Levels in Art, Drama and Dance and a Diploma in Performing Arts at Elmhurst School for Dance in Camberley. Polly went straight into television co-presenting Fun Song Factory as Paige with Laura Hamilton. She also appeared as Princess Sapphire in Genie in the House, Toonattik, and played Crystal in Disastrous for Nickelodeon. Later she starred in Don't Get Screwed for BBC3, and as Becky in Meet the Parents on E4. She currently is a presenter on BBC3's Real Hustle.

Jennifer Aniston has reportedly been overheard telling friends that she would marry Justin Theroux by the end of the year.

The Wanderlust actress apparently joked at a pre-Oscars party on Feb 24, that she and Theroux would split without an imminent proposal, adding that they had brought a dog into their home as "a test run for kids".

"We're constantly laughing," The Mirror quotes her as saying, "Now we've got our new baby things are getting serious."

"We have new responsibilities. (The dog is) like a test run for kids, I guess, although hopefully kids are easier to house-train.

"Things are fabulous, I'm happy. If he's not got down on one knee or we're not married, by the end of the year, it's over."

A friend of Aniston said: "Jennifer has never been so happy romantically. She and Justin have discussed their long-term future and both agreed that they love the idea of settling down. "The onus now is on Justin to pop the question."

Aniston and Theroux were first romantically linked in May 2011.