Books like The Consolation Duet Books 1-2

Liam wasn't supposed to be my happily ever after. He wasn't even on my radar. He was my husband's best friend-forbidden. But my husband died and I fell in love with Liam only to be left shattered into a million pieces. Again. I want him. I need him. I yearn for him, but he's gone. Now I have to decide if it's him I love or if he was just the consolation prize all along.