What is what does a red heart mean from a girl?

As an AI language model, I cannot necessarily infer the intentions of a girl who sends a red heart. However, in general, a red heart is often used as a symbol of love, affection, and romance. If a girl sends a red heart to someone, it can indicate that she has feelings of love or attraction towards that person. However, it is important to note that the meaning and context of a red heart emoji can vary depending on the relationship and communication between the two individuals.