Atomystic's Things

Hellooo I’m trying to find a webtoon I read a while ago but I completely forgot the title.

Here’s what I remember from the beginning :

- The story follows a brown-haired FL who is in a contract marriage with a blond nobleman
-She falls in love with him, but thinks he doesn’t love her back (he actually does but never shows it)
-The husband leaves around the time their contract is about to end (I think for war or something similar) and he comes back with amnesia et forgot he loved his wife
- Btw when he returns, he brings another woman with him (the classic looks innocent but is actually manipulative)
- The FL is heartbroken and eventually leaves without a trace to live a quiet life somewhere else (countryside I think)

From what I remember, the story is supposed to go toward a regret + reconciliation trope, where he gets his memories back and tries to win her again but I didn't read further so I'm not sure.

If anyone has any idea what this webtoon is, please let me know I’ve been searching foreveeer

Thank you!!