I don't see a situation that makes sense for either a good, neutral or evil chracter in telling Minthara something like you suggest.
People like Minthara would take any information you give her and then decide how she could use it to her benefit. "I like you" would make her think how it can be exploited.
She would consider if she can use your emotions to solidify her position and power.
Why not? Let him use it, I don't mind
