Can't Let Go (True Psy #1)
E.A. Reynolds

Tide Greenly is tired of living a lie. He’s a Separatist and is determined to live openly gay, so he breaks up with Thomas. But the breakup is complicated by the fact that they’re working a case together.
During the search for truth and justice for, Thomas comes to realize he can’t live without Greenly. As he attempts to win Greenly’s heart, Thomas stumbles upon a conspiracy that could start a war between the two powers of the Psy Community and cost every gay man his life. Will Thomas walk away or risk his life for the greatest love he’s ever known?