Sloth by Lana Pecherczyk

She’s a hacker, a legendary gamer, a badass vigilante… if she can get herself out of bed.
Nothing much appeals to Sloan Lazarus, except the burning hatred for the man who stole her heart and then ghosted her—right after she confessed her crime-fighting secret. When he turns up two years later, completely complacent and hot-as-sin, Sloan is determined to make his life a living hell. Then she discovers he is her lifemate… and her unstable powers kick in.
After being dishonorably discharged from the army, Maximillian Johnson has come to the sin-soaked Cardinal City to make a difference. A dark secret drives his motivation, and coloring outside the lines of law enforcement with the Deadly Seven is just what he needs. It doesn’t hurt that he gets to work with the beautiful woman who still holds a long denied place in his heart.
Problem is, the fanatical Syndicate are closing in, and just when the Deadly Seven think they’re making headway, they take two steps back. Sloan must learn to make peace with the brooding security specialist, or suffer the consequences of being imbalanced. If she can’t learn to trust again, and control her devastating new powers, life will be worse than a living hell… it will be deadly.