In this one it is more like a memory from being a young child and the language really conveys that and the thoughts they are having.

i am assuming the realtionship is more of a parent or family member? Such a sad thought as your ending line gives the image of a very small child waving goodbye to someone the adore, like a mother figure or father, and having no idea they arent coming back or just how hard life will be without them.

Powerful work