It turns out Amanda Seyfried is no longer single. The Les Miserables actress is apparently dating iSteve actor Justin Long.

According to US Weekly, an eyewitness confirmed to them that a source claimed the two were inseparable at the Lovelace premiere.

"Justin came alone and stayed close to Amanda all night," the source says. "They weren't making out or anything like that, but they were just inseparable during the event. He hung out when she talked with others."

"Justin is super private about his relationships, so I'm not positive how they exactly met, but they've known each other for awhile, when they were seeing other people," a source told Us. "They recently started hanging out more, going on date-like activities. They're both busy … but they're seeing where it goes."

Another source confirmed the pair have a "similar sense of humour".

Amanda was most recently tied to Dexter actor Desmond Harrington and before that, the actress dated Dominic Cooper, who is now dating Irish actress Ruth Negga.

Long, on the other hand, had an on/off relationship with Drew Barrymore for three years and was also tied with Kate Mara.