Okay I and looking for this Hannah Howell book and can't remember the title.
The couple is married, but the hero is not sure he wants to be married to her. (I think the girl is a Murry, but I am not sure.) The part I remember the most was that the hero has a REALLY goodlooking friend and wants the girl if the hero decieds to not stay married to her. The girl and the really good looking friend become friends and the husband it jealous of their relationship. They end up staying together, but he is still upset about the friendship. She tells her husband not to be upset and that his friend just wants what they have and he wants others to look at him for things other than his looks.
I am pretty sure the really goodlooking guy is NOT Payton Murry, but again I could be wrong.
Thanks for all the help.