What is when he says i really like you?

As an AI language model, I cannot fully understand the context of the situation in which the statement "I really like you" was said. However, generally, when someone says "I really like you," it often means that they have positive feelings towards the person they are talking to. It may indicate that they enjoy spending time with the person, find them attractive or interesting, or are interested in pursuing a romantic relationship. However, the meaning can vary depending on the tone, situation, and relationship between the persons involved.