(Cover) - EN Showbiz - Demi Moore reportedly felt so emotional she thought she'd "throw up" when she saw Ashton Kutcher recently.

The actress announced her marriage to Ashton was coming to an end last year following allegations he was unfaithful.

The stars both attended a recent birthday party for Rabbi Yehuda Berg, who officiated at their wedding in 2005. Demi reportedly found the experience tough.

"Events of the past few days have really thrown Demi, she's been knocked for six," a source told British magazine Grazia. "She half-expected to see Ashton at Yehuda's birthday party, but she said as soon as he walked in the room she felt such a wave of emotions she thought she was going to throw up."

Ashton apparently gave a speech at the event in which he discussed the mistakes he's made over the last 12 months. He is said to have become teary-eyed and later struck up a conversation with his estranged wife.

"Nothing could have prepared her for his breakdown... She said she wanted to run out of the room, but managed to hold it together," the insider added. "When she eventually got to speak to him, the conversation quickly turned to how much he misses her." (C) Cover Media