Before Malémene even met her familiar she would hear him and receive images. There was a very strong heart connection, it wasn't just telepathic. The heart – third eye connection had formed and she already knew she would love him dearly.
Obviously, being a child not understanding or articulating that fully, she felt it as a yearning, a sense of "I can’t wait to meet you!" The anticipation of knowing that someone hadn’t entered her life yet but was on their way.
She was also aware of the fact, that he was experiencing that regarding her, they were aware of each other. That’s how deep their communication was.
We all have our own experiences so feel free to share in the comments!