What is i think my boyfriend fancies my daughter?

As an AI language model, I cannot determine whether or not your boyfriend actually fancies your daughter. However, it is important to address any concerns or suspicions you may have and have an open and honest conversation with your partner. If your boyfriend's behavior towards your daughter is inappropriate or makes you uncomfortable, it is important to take action and protect your child's safety and well-being. It may also be helpful to consider seeking advice or guidance from a trusted friend, family member, or professional.