Explanations often have nothing to do with our in the moment behavior anyway. We generally behave without intention, in that, we rarely intend to do things before we do them. Instead we act in a reactive way - i.e. we react to what is happening in the moment. Then, after the fact, we explain our behavior. If someone asks why we did something, we can always come up with an explanation or a story of why we did what we did, but the explanation is often based on a lot of bullshit pychological stuff that we are unaware of, like for instance, who we think we are and how a person like us should/would behave in such a situation, and all that nonsense. But in reality these are actually just backwards rationalizations. They are the stories we tell ourselves and others in order to maintain our identity, i.e. our sense of self.
generally agree, explanation is often a later construct. Makes it terribly complicated