The couple have dated on-and-off for two years. According to E! News, they split for a brief time in 2012. The 42-year-old actor said it was difficult for him to continue a long distance relationship. Love seemingly conquered, and they got back together shortly after.
Arquette has one other child, 9-year-old daughter Coco, with ex-wife Courteney Cox.
The couple's reps have not yet responded to requests.