"I’ve made all these horrendous mistakes in the past year," he's been quoted as saying.
“His voice broke, and he started to tear up," a source at the party said. "Demi just looked completely frozen.”
Does this mean the pair might reconcile? Don't hold your breath.
"The family is in a pretty good place right now, but Ashton and Demi won't go back to being what they were," says a source. "Ashton will always be a part of their lives, especially with regard to the girls and how close he is with them. The relationship has evolved and will continue to. There are just too many issues to go back. It's about figuring out how to move forward into a new place."
And the new place is just... cordial.
"They were friendly," a source told PEOPLE about how they interacted at the party. "Ashton got up at one point and grabbed coffee in a paper cup for Demi, and they smiled a few times during the program at each other. They seemed to get along and feel comfortable."