What's the Name of That Book??? discussion

There are two sisters one of them is a model or something like that, the other one is a housewife. Drama begins when the model comes to stay with her sister and husband. The husband and the model sister had something before he got married to the housewife. She (housewife) is insecure she feels that her husband will leave her and if my memory is correct she sets free her husband and tells him to make a decision. i am not sure how the novel ends.
I read it in 2015 but it may be older. Thx in advance if anyone knows the book.

Just the Way You Are by Barbara Freethy?

Juels wrote: "Just the Way You Are by Barbara Freethy?"
Thank you.

You're welcome.