The way how she is portrait, her emotions going against FL in tactful way, reason behind it make her truthful. I can't imagine that in real life in the same situation with the same history accept FL easily. Her pride was already shattered, she heard only one convey between stupid husband and his guard she could not know what else was said also that FL and ML relationship would fulfill wish of her husband and as a reason in some way to mock her own marriage that would be unnatural if she would just say oh well let it be a special that there are other options as well.
The way how she is portrait, her emotions going against FL in tactful way, reason behind it make her truthful. I can't imagine that in real life in the same situation with the same history accept FL easily. Her pride was already shattered, she heard only one convey between stupid husband and his guard she could not know what else was said also that FL and ML relationship would fulfill wish of her husband and as a reason in some way to mock her own marriage that would be unnatural if she would just say oh well let it be a special that there are other options as well.