She maybe still in love with dowun but she didn't trust him she trust baek. And what i see dowun is a possessive person he feel like he own her not because he love her
I have a feeling that the princess trying to be Estelle, because the queen keep comparing her with Estelle. Since she know what Estelle look like now(cause she's not blind anymore), she's trying to steal Estelle idendity to make her mom aka queen happy. ┑( ̄Д  ̄)┍
She maybe still in love with dowun but she didn't trust him she trust baek. And what i see dowun is a possessive person he feel like he own her not because he love her