Addy kept her hand on Iestyn's back the entire time David was calming him, lending him her strength too.
When Iestyn started to speak, she winced visibly when Iestyn mentioned drowning. God, Lucifer had only waterboarded her once, but she still had nightmares about it. It had been so awful and painful and terrifying- Poor Henry. Addy clung to Iestyn's offered hand, frowning further when Iestyn revealed Lucifer had planned to make Iestyn watch him torture Henry the way Iestyn had been tortured.
And then Iestyn said Henry had thrown himself at Lucifer and her jaw dropped. "He did what!? Did- To break the phone? Was he trying to break the phone? Did it work?"