All of our decisions are based on emotion.
Every. Single. One.
At least, this is what my neuroscience PhD-student son tells me. And, I think he is probably right. Our "rational selves" are embedded (or, more accurately embodied) within an autonomic machine that reacts to stimuli by giving rise to feelings that influence how we make decisions. And, for the most part, we have no idea that it is happening.
This is also why I have a couple of people in my life who (a) are not related to me by blood or marriage, (b) have what I consider to be reasonable taste in how they approach life, and (c) know pretty much everything that is going on with me: good, bad, or embarrasing. Whenever I am making a non-trivial life decision, I run it by a couple of these people. Usually, they say "Yeah, that sounds about right." Sometimes they say, "I don't know, are you sure about that?" Every once in a blue moon they say: "Um. No. Do. Not. Do. That." It is not because any of them are smarter than I am. It is because they are not wrapped up in my emotional BS. And, I do the same for other people. It is one of the very best things about being in a recovery community.
This is also one of the reasons why I went from meditation-scoffer to someone who practices it regularly. It helps me recognize strong emotions. Many (many) years of psychoanalysis also helped. A lot.