After seeing this movie, I couldn't eat octopuses(not that I eat them very often) for a while. The story begins with the octopuses couple being seperated and if it turned out all wrong, the female one would have be buthchered. The male despertly and daringly go after the truck that she was taken away. The climax was probably when they were united but still being chased by the man from the fish store.
All animals probaby have a way of feeling emotions, and this kind of romance is just what we humans sometimes forget. For those that doesn't speak or you feel nothing about are really hard to think about what they might be thinking. In Japan, octopuses were merely just a part of our food and in some countries, they are even callled devilfish because of the way they look. So maybe the movie was trying totell us that even octopuses feel love love and that love can't be easily broken.