I think this is going to be an easy question, but funny how I didn't find anything on it in the searches.
"Chemistry" or attraction is not an "on or off" kind of thing, it's much more like temperature where there's an infinite number of possibilities between hot and cold. Wife and I are discussing our reactions to couples we meet and describing our attraction in terms of hot, moderate or cold. "Moderate" means - yeah, we would most likely have plenty of fun together and "hot" means - "little socolais" was checking things out with his one good eye
So, the question has two parts - what "scale" do you use to describe the level of chemistry to your spouse and do you record this information in some "note field" for future reference?
We're both straight, but I can see where this could get complex with some interest in bi activities.
Bruce