Help me find pls

I've been thinking of this manhwa. It was a isekai but not really. The mc gets killed by soothing her husband's power. And so they go back in time to where her husband was originally from. The husbands doesnt realzie mc isekai back with him. The only reason mc thought they for married was because they were compatible because he has the power and she soothes his power when out of control. I also remember the sainteness brought him back because he was the most powerful and was used. I can't remember what it was called and I cant find it.