Help me find it!

Okay so the title name have the ML lead name. Story is about a noblewoman falling in love with a priest/ pope highest position since they first meet. The noblewoman keep saying they're both in love in each other, but the people around here thought she's crazy and the priest doesn't like her. Her obsession with love kinda crazy she keep searching the priest no matter how many way. The priest turns out like her, he keeping her away, bc there's revelation, the world would be saved only if either the priest or the person he love sacrifice herself. That's why he keeps away from the girl. Near end story another girl ended wanting to sacrifice herself bc she think the priest love her, and the noblewoman who obsessed with the priest take her place and end up sacrificed by burning