The Ledger Of Love - The Chance Encounters Series, #86

A perpetually grumpy accountant, Theo, finds himself oddly drawn to his cheerful, optimistic office assistant, Rafael, as they work late nights together on a big project. Soon feelings start developing between the two and Theo has to come to terms that maybe he doesn't despise Rafael as much as he thought he did. Or even at all. But both guys aren't out as gay and workplace relationships aren't allowed at their job.