Why did MC think of divorce to save ML's life instead of doing some changes in her own part? She knew clearly why ML met his demise, so instead of getting divorce, why don't she stop acting recklessly and being too kind for her own good? Beside, ML was in military and in the risk to lose his life anytime with or without MC so unless he became an idle noble, the risk would be still there.

If it's because ML was forced to marry her, she didn't care about it in the past when she begged her parent to marry him againts all odds so why did she suddenly being insecure after getting married? It's a bit too late, right?