Is Adrian Grenier cheating on his long-称する，呼ぶ／期間／用語 model girlfriend with a hot Hollywood 生産者?

Undercover couple: Adrian Grenier was spotted leaving Sant Ambroeus restaurant in the west village, New York yesterday with Courtney Bingham

Keeping her distance: Bingham 出口d after Grenier and kept 支援する from the actor as they walked to their waiting car

Long-称する，呼ぶ／期間／用語 love: Grenier with girlfriend Emily Caldwell earlier this year

He waited for her in his car before 運動ing the pair of them off into the afternoon.

And the source says that this is not the first time the two have been out together, although they've been luckier the past few times and managed to escape the paparazzi.

The pair 明白に enjoyed their time at Sant Ambroeus as the source says they returned there, for the second day running, earlier this afternoon for another meal.

Earlier in the day they were spotted leaving the 基準 Hotel together in the nearby Meatpacking 地区.

If Grenier has ended things with his girlfriend of the past year and half, it's certainly news to her.

A の近くに friend of Caldwell's tells MailOnline that as far as the model is 関心d she is still Grenier's 安定した girlfriend.

And although Grenier has tried his hardest to keep their 関係 out of the スポットライト, choosing to walk the red carpet 単独の and never talking about Caldwell to the マスコミ, he was very public with his affection for her at his September 21 Los Angeles 首相 party for his new HBO 文書の, Teenage Paparazzo.

'Adrian was 持つ／拘留するing Emily's 手渡す and 率直に making out with her throughout the night,' an 目撃者 tells MailOnline.

However, in maybe a foreshadowing of what was to come, he was also spotted getting の近くに to Bingham during the same party.

'It was 肉親，親類d of weird, at one point Adrian was dancing with Courtney, and they looked 肉親，親類d of intimate,' the 目撃者 says. 'It was 権利 in 前線 of Emily, I remember thinking "wow, she must really not be the jealous type!"'

合間, whilst the source says Emily is 全く in the dark about Grenier's several rendezvous with Bingham, it seems Bingham is also 全く in the dark, about Grenier still dating Emily.

'She had no idea he was still seeing her until someone told her the other day,? she thought they had broken-up a few weeks ago.'

In the words of Ari Gold: 'Let's 抱擁する it out b***hes!'

In the 運動ing seat: Grenier waited for Bingham to climb in before 運動ing away

Shady lady: In her over-sized sunglasses, furry vest 最高の，を越す, skinny ジーンズs and high heeled ankle boots Bingham certainly looks the part of A-名簿（に載せる）／表（にあげる） girlfriend