“It almost felt like we’d been mourning Matthew for a long time,” the actress says of her late co-star Jennifer Aniston opened up about the death of her late “Friends” co-star, Matthew Perry , and his struggles with addiction and substance abuse, stating, “I’m glad he’s out of that pain.” Her comments were featured in an interview published Monday with Vanity Fair . The actress worked with Perry for 10 years on “Friends,” the beloved NBC sitcom that launched them both into full-fledged stardom.