Can an analytical brain truly commit to another person?

This question has been in the back of my mind for some time.

I have been considering it because I often when dealing with romance am the first person to play the entire relationship in my head and too often emotionally vacate it because I simply don’t feel the potential plays out well long term.

There is a theory that the longer one is single or the more partners one has makes them less likely to commit long term or in a meaningful way. I see that as a plausible potential factor but feel there might be enough to this to be its own factor.

Although I resist the idea and wondering without compromising integral parts of self and maintaining a meaninglfulness (i.e. more then convenience, habit, security) if this premise could be plausibly refuted.