To Harm and To Heal by Ava Devlin

Mae Casper doesn’t have time for romance.
She runs the Clerkenwell Clinic with iron determination, tending the sick and wounded of London’s poorest streets. Patients crowd her tables, students trail her steps, inspectors sniff around her doors—and the last thing she needs is a self-appointed guard dogging her every move.

Roland Reed has lived by his fists and his wits since childhood, but nothing unsettles him like Mae Casper.
Two years ago, he carried an amputation patient who sank his teeth into Roland’s arm—and left him marked in more ways than one. He’s avoided her ever since. But when threats and vandalism escalate around the clinic, Roland finds himself stationed at her side, protecting what she’s built.

Mae knows she doesn’t need saving. Roland knows he’s no one’s hero.
But as they work shoulder-to-shoulder amid chaos, meddling friends, and midnight intrusions, they discover that competence can feel a lot like intimacy—and that sometimes the hardest wounds to heal are the ones they’ve kept hidden.