Did Christopher Robin marry his cousin?

Could you please clarify if the statement "Did Christopher Robin marry his cousin?" is factual or a mere speculation? It's intriguing to ponder over the personal life of fictional characters like Christopher Robin from the beloved Winnie-the-Pooh stories. However, as these tales primarily focus on the adventures and friendships of a young boy and his stuffed animal companions, they don't delve into the intricacies of his romantic life or familial relationships. Therefore, it's essential to distinguish between the realm of fiction and reality when addressing such inquiries. Is there a specific context or source that prompted this question, or is it purely out of curiosity?