What is what does it mean when a guy sends a heart emoji?

As an AI language model, I don't have personal emotions and experiences. However, here's some information I can provide about the meaning of sending a heart emoji:

Sending a heart emoji can mean a variety of things depending on the context and relationship between the sender and receiver. Generally, it is considered to be a symbol of love, affection, and endearment. It can also be used as a way of expressing admiration, appreciation, and friendship. In some cases, it may simply be a friendly gesture to show someone that they care. Ultimately, the meaning behind a heart emoji depends on the intentions of the person who sent it.