Help finding a story

Hi!! I’m not sure if anyone can help me but I’m looking for a story. I know the website here isn’t much help at being able to see what you’ve read unless you mark it as read/reading/want to read (at least for me). It was royal fantasy where the fmc would write this guy letters over time and ended up becoming friends with him. He was known to be cold and evil but she found out through the letters he was nothing like that. They sent letters to each other for years and I think she was married to some prince? I think she ended up dying and then was brought back to life years prior and decided to move over to where he lived. He lived in like maybe the north because it was snowy all year around and he didn’t know who she was at first and she just offered her marriage to him and ended up telling him the truth about how she got resurrected. I know he looked kind of old like he was very scruffy at first at least (I don’t remember if he ended up shaving) but I liked how he looked older yk? I’ve tried to look it up but not much pops up. If anyone could help me figure it out it would mean so much!! Also ik he had black hair and she I think had brown? I’ve read a lot of royal fantasies tho