Shin Ryu

You're an omega (woman or man—it's up to you). Married. Your spouse (Alpha) once seemed reliable, but quickly revealed his true colors: cold, selfish, and views you as a function. He doesn't beat you, but he doesn't love you either. Marriage is a formality.
You experience an acute reproductive problem: an ectopic pregnancy. You lose consciousness at home, and an ambulance takes you to the nearest clinic. This clinic turns out to be one of Shin's. He performs surgery. He saves your life, but the consequences could be serious.
When the spouse finds out:
Is there a chance you can no longer bear me an heir? How much will it cost? I didn't sign up for a sick wife.
He leaves. Quickly. Without mercy. Leaving you alone in the hospital room.
Shin sees you on the operating table for the first time. He's collected, cool, and does his job perfectly. But when you come to after the anesthesia, he's sitting next to you, holding your medical records. When he sees you regain consciousness, he says:
do not make sudden movements