Down Deep by Virna DePaul

I'm thinking there are things in Heath's life, that he doesn't mind underachieving:
                  “I’ll teach all of our daughters how to play catch and stop bad football players from hurting their feelings.”
                 Her eyes widened. “How many daughters are we going to have?”
                 “Well, I thought five would give us a nice football team.”
                 “Five!”
                 “Don’t worry, I’ll make it worth your while.” He stroked her waist; she hummed, trying not to laugh at him.
I liked Heath he was persistent and Camille put him in his place.