Looking for a manga

I swear its on the tip of my tongue but I can't remember what its called-- anyway its a historical shoujo and the main character always ends up marrying the hero of the story but after the demon king expedition he leaves her for someone else, and thats happened like 3 times for her now so in her next life when her partner is chosen as the hero she prepares for the heart ache and moves away and lives on her own. But this time the hero does come back to her and is loyal. Thats what I remember. Anyway lmk if yk thanks