Sandy does he know she feels that way.
He doesn't know that she doesn't find him sexually attractive or at least he's never mentioned it to her.
She said finding the perfect man is impossible. When she was sexually attracted, they wouldn't commit, those who would commit wouldn't have been good providers.
So according to her she weighed it up and went for a safe guy, he's okay looking, he wanted kids, he could provide and he was ready to commit. Plus she sees him as being faithful to her.
There are many women who go for Mr Safe but will never admit it openly and I've supported a few of them who have had affairs.
They admit (to me) that the reasons they married wasn't so much for love, but that he was honest, reliable and a good provider financially. They really preferred the 'bad boy' type, but knew they wouldn't be the best husbands.
Then I've had those betrayed husbands, who pretty much twig they've been used, but still don't want to divorce after they know of the affair. It took one husband 12 affairs by his wife to decide enough was enough and file for divorce.
That's why I sometimes get very suspicious when a very good looking woman, settles with a certain type of man, because of what I've seen.