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

As an AI language model, I don't have personal experiences and I don't have emotions. But generally, the red heart emoji is a symbol of love, affection, and caring. When a guy sends you a red heart emoji, it usually means that they have strong feelings for you and want to express their love or affection towards you. It can also be a sign of romantic interest or a way to emphasize their feelings for you. However, it's important to note that the meaning behind an emoji can vary depending on the context and relationship between the sender and the recipient.