Rumer Willis finally speaks out about her mom's difficult breakdown. 23-year-old Rumer was with Demi when she collapsed at her LA home last month after reportedly inhaling nitrous oxide, better known as laughing gas. Rumer has not revealed anything about that night, but over the weekend, she finally spoke out saying, "Of course the situation weighs heavily on me." But she is confident her mom will bounce back, saying: "My mother is on the road to recovery....It's slow going but we believe in her." Rumer is described by insiders as being very close to her mother. Rumer, her sisters Scout and Tallulah, and their father, Bruce Willis, were said to have encouraged Demi to seek professional help before her collapse last month. 49-year-old Demi is currently in rehab, seeking professional treatment for an 'eating disorder and addiction issues.'