The former couple, who split in October 2010 after 11 years of marriage, were recently united on camera when Arquette signed on for a guest appearance in the season finale of Cox's ABC sitcom Cougar Town.
"It's great to act with Courteney," Arquette told People about the experience. "I love it. We met on a set, and it's great to revisit that.
"We treat each other with respect. You don't throw out all the good times you shared just for the change in feelings."
Arquette also joked about trying to overcome his wild side, adding: "I'm trying to be more grown up nowadays. It's not easy. In my heart, I just want to swing on these chandeliers, but I'm trying to keep my pants on and not run around naked."
Cox recently confessed that she and Arquette are better parents to their daughter Coco following their divorce.