Neville had nothing to do with Jack figuring out who was sitting in his ex-wife's head. The poor boy, or man, was a good man, and he could last a long time; he'd done it before, and do it again. No, in fact, Neville had done some work in making it difficult for Jack to focus at times. Matilda was forgetting that when Jack wanted something, he'd get it. Or die trying. He wanted information, he got it.
"You were working. Love, you work too hard. You should remember how to relax. Now get us a drink and come sit down. We've got some talking to do." He still hadn't sat up. With the kitchen light on, as well as the other light, she could probably see what he'd done to her place. It was trashed.