Looking for a Quick Transmigration Story With a World Featuring Coercive Possession 找本书，快穿位面的一个世界，强取豪夺的

In one story, the female lead is a music teacher and the male lead is a mob boss. She pretends to be fragile, then saves him. He thinks she is a spy and takes her back, forcing her to be his. She keeps pretending that she still loves her husband, or maybe boyfriend, I can't remember. Please help me find it.