What is she called me handsome?

As an AI language model, I don't know the context of your situation when someone called you handsome. It could mean that the person found you physically attractive or good-looking. It's a compliment that is typically used in a romantic or flirty context. However, it's also possible that the person used this compliment as a simple gesture of kindness or friendship. Ultimately, the meaning behind the compliment depends on the person who said it and the situation in which it was spoken.