Responses
Ehh? I just thought that after life threatening incident, she just want power to survive and to have Beryl by her side. Maybe she mentioned about understanding having a cheating man actually just a way to sway the other person.
She is right now an exchange student of sorts from a highly reputed kingdom. Helps women who are in a tough predicament with their engagements.
She mentions to her friend how she was in a similar position of having a cheating fiancee. My guess is, something very very sinister happened to MC which involves her ex fiancee, she left her country, and is currently gaining allies, power and reputation in the country she's studying at to get revenge and establish herself as a powerful contender for the throne.