Cartwright said that Taylor's addiction, which he revealed he's battled for over 20 years, has done "irreparable damage" to her and their 3-year-old son Cruz

Cartwright and Taylor share a 3-year-old son, Cruz, from their four-year marriage. “Jax has caused an enormous amount of damage and I have very little trust in him at this point,” Cartwright concluded. “My only hope is that one day, he will be a better person for his son.”

“His addiction unfortunately has done irreparable damage to my son and I,” Cartwright, 36, who shares 3-year-old son Cruz with Taylor, 45, began via her Instagram Story on Tuesday, March 4. “I’ve spent years trying to help him.”