The Dotted Line by Claire Cullen

Bennett has perfected the art of staying off his father’s radar. Until the elder Aldsley issues an ultimatum: either Benn agrees to wed Leopold Ravensworth to save the family from destitution or his younger sister will be forced into marriage. But when Benn signs the marriage contract, he loses much more than he expects. Trapped on the Ravensworth estate, he becomes isolated and lonely with little to distract him from the painful memories of his past. Until Leo.

Leo has long since given up on inheriting, throwing his energy into becoming a successful entrepreneur. When a new law changes things, his father comes up with a plan to see him married before his twenty-fifth birthday. Once the contracts are signed, Leo thinks nothing more about his husband on paper until illness forces him to return to the family home to convalesce. He’s surprised to find Benn there, even more so to see he is a shadow of the gorgeous man he met at their wedding.

He makes it his mission to connect with the skittish, fragile Benn. And the more he unravels the events of Benn’s past and present, the closer they become. Until husband on paper starts to look like something more…