Secrets of a (Somewhat) Sunny Girl by Karen Booth

As sisters, they tell each other all their secrets…except one.

With divorce and infidelity hanging from nearly every branch of her family tree, Katherine Fuller sees no point in marriage. Boyfriends? Sure. Sex? Of course. Wedding vows? No, thanks. Still, when her younger sister Amy gets engaged, Katherine gathers all the enthusiasm she can. She won’t let Amy down. She’s done enough of that for a lifetime.

As the sisters embark on wedding plans, Katherine’s college love resurfaces. It nearly killed Katherine to part from sexy Irish musician Eamon more than a decade ago, but falling under his spell a second time forces her to confront everything she hid from him. The secrets surrounding her mother’s death are still fresh and raw in her mind, but one has haunted her more than the others. She can’t bear to tell anyone, especially not Amy. It could ruin far more than a wedding. It could destroy a sister’s love forever.