Well there you are,but it doesn't mean to say that she didn't ring him again ? Knowing what Sheila had been like it would have been more than just once. Early mornings weren't her best times and poor Nevill wasn't alive long enough to give his version of how she was if he'd said anything about her at all.
Ah! But the point is, Lookout, you DON'T know Sheila, and whilst you've spoken countless times about schizophrenics being at their best in the early hours of the morning, you don't believe she was schizophrenic, so that won't wash, will it?