Trying to find a story

Its probably shoujo, I can't remember the name but what I do remember is that there's a lady who's married to a rich man after her father's business goes bankrupt and the marriage turned out to be miserable. The husband had ptsd from the war(ww2?) and he kept her locked in their mansion(?) + gave her a dog and a rose garden. She dies and comes back in time i think? And tries to make her father not do the same investments again but he does them anyways so she kind of falls back into her situation from her first life. She does end up not accepting the guy's proposal this time, ending ties with her father and making friends with the guy's sister. A war happens and she serves as a nurse in the guy's family's hospital. They fall in love around then too I think and the last update I read had the two meeting in america after a while of separation