The reason why Leslie Cheung doesn't marry Joey Wong is because of their personality differences and relationship changes. Leslie Cheung once said in an interview that Joey Wong disliked that he was too thick and not high enough, and he didn't leave a good mouth. He had too many shortcomings and was not worthy of Joey Wong. It can be inferred that Leslie Cheung didn't marry Joey Wong because their personalities and lifestyles didn't match, which led to the change of their relationship.