United Kingdom, July 29 -- Danny DeVito still has a "good relationship" with his former partner Rhea Perlman.

The It's Always Sunny in Philadelphia star, 81, separated from the Cheers actress in 2017 - although they remain legally married - but explained how the pair continue to spend time together on a daily basis.

DeVito - who has children Lucy, 43, Grace, 41, and Jacob, 38, with Rhea - told AARP The Magazine: "We're always over at her house. We see the grandchildren together, that kind of stuff. So that's a good relationship."

The Twins star also reflected on how he and Rhea, 78, met in the early 1970s when she went to see an off-Broadway show that he was appearing in.

DeVito recalled: "We hit it off. We liked off-Broadway stuff. ...