The chemistry between two people in any relationship is always important in terms of storytelling. We, as the audience, need to be able to root for these two people to get and stay together. When the attempt to build chemistry succeeds, it is a good thing. However, when it fails, it is not only a bad thing, but also distracting from the rest of the story. So, what couples have the best or the worst fit in terms of chemistry?

Also, here is an article about building chemistry:

https://mythcreants.com/blog/twelve-...7hCXHI-td2apwk