The girls have a love/hate relationship with Henry (mostly love :-)) I think he feels the same way about them. He follows them around because they represent food to him and he waits for the moment he can snatch whatever yummy treat they might be carrying, or leave unattended on the table. Shouts of protest ensue. They couldn't say Henry when they were younger, so they called him YeYe (which happens to mean Grandpa in Chinese). It stuck and we still call him that all the time. He answers to either name.