United Kingdom, Dec. 21 -- Lily Allen's daughters are still in contact with David Harbour.

The 40-year-old singer split from the Stranger Things actor around a year ago and she hasn't intervened in the relationship he still has with her kids Ethel, 14, and 12-year-old Marnie, who she has with first husband Sam Cooper.

She told The Observer newspaper: "I stay out of it.

"They've both got phones. They all text each other."

Lily - whose new album, West End Girl, hints that David was unfaithful to her - admitted her experiences in her second marriage has given her a better understanding of the "pain" Sam felt in their relationship.

She said: "[I've learned there are no] baddies and goodies in a marriage but, having done things that were ...