In the matrimonial bedroom, glancing at poor Stella with her hair well tucked into her nightcap, sighing as she slept in the huge, high brass bed, he felt touched. (1.74)
Fabrizio isn't a totally cold, uncaring guy. As we can see here, he has moments of true tenderness for his wife, even though he usually finds her cold and prudish. It's like Lampedusa is throwing us a bone here and saying, "Okay, so maybe being married doesn't guarantee that two people will get sick of each other."