https://www.mangago.zone/read-manga/my_second_husband_desperate_and_depressed/
Maybe this? I haven't read it in so long can't remember quite well
Thank you for the reply but this is not , there was special flower crowning ceremony to choose the husband and she chooses the northern duke instead of the previous life husband
Do you remember hair color of FL??
Brown color also I got it from another source. The name is
"Why are you so obsessed with your fake wife"
(๑•ㅂ•)و✧
So like the fl fell in love with the ml in her previous life and due to political arrangement she married the ml who was a commoner but rose to power . But eventually her life turns into hell and she dies. But she regresses around that time of engagement and all , so she choses the family's enemy duke to get engaged to instead of the previous husband....if anyone can help .... Now that ex-husband is obsessed with getting her back and the new ml duke also develops feelings for her .... It the event like the two war hero were standing to be given a flower crown by the Duke's daughter and who ever she gives to means she likes them ... So she gave it to her family's rival duke to get revenge