Falling for the Good Guy by Violet Duke
Abby Bartlett is well aware that everyone thinks she's in love with her best friend Brian. He is, after all, the type of man a nice girl should be with--the polar opposite of the bad boy--the kind of guy who didn't let his wife's decade-long illness stop him from showering her with a lifetime of love every second until her dying day. Yes, Brian has been the yardstick against which Abby has measured all other men. But everyone's wrong; she couldn't possibly be in love with him.
Because she's never once allowed herself that option.
It's taken a while but Brian Sullivan has finally come to terms with being a widower at the age of thirty, surviving the woman he spent half his life loving, a third of it losing. Truth is though, he wouldn't have 'survived' any of it really had it not been for Abby--sweet, incredible Abby--the woman he's never once had to picture his life without, never realized he couldn't truly live without. Until now. Now that he's finally able to love her the way she deserves, the way he knows she wants to be loved...by his brother.
Who's giving him exactly one chance to speak now or forever hold his peace.