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pls help i forgot the name of this novel. basically the fl gets reincarnated into a young noble that marries an even younger noble. like they are both kids when they get married. then they become close and they overcome some problems together but then he has to go off to war and when he gets back theres a misunderstanding that hes gonna divorce her and marry a princess he saved during the war. when all the knights come back to the manor they divide into two factions - siding with the princess and siding with the duchess. but the duke is in love with the duchess but it takes a long time for the misunderstanding to be resolved. theres also magic creatures and stuff and she has a sickness where she coughs up blood but she knows the cure but a side character who is on the “side of the princess” misunderstands and starts to feel sorry and takes her side. pls help huhu