@Bibibia I think you are right. Men don't really wear their hearts on their sleeves but she does it so blatantly when she is around him. So I think he'll start figuring it out that she is a woman. But I don't think he'll start a triangle. I think he would say duty comes first and as long as you...
I wonder if he ever figures out she's a woman. Men can be so dense sometimes. But women can be too. Why didn't she share her true gender when they first met, when he first made a deal to save her father in exchange keeping her? Now she has to keep up her charade.