Scorpio Intensity?

by Hope

What is really meant by Scorpio intensity? I keep reading about it on many websites and in a few astrology books. I have six planets in Scorpio and have no understanding of what others are referencing when they make that comment.

I have heard it only once in reference to myself. It was during a time when I was describing my detailed observations and how I felt about him. It was all quite positive and complimentary. There was no yelling, screaming, or anger. However, it was honest and thorough. I was just telling him how I perceived to date (new relationship) and what I really appreciated about him. He said I was being sort of scary.

I left it alone for the moment, but a week later asked him what he meant by his comment. I never got a response, even 3 months later, but I learned not to do that again with him.
Actually, I am accused more of being emotionless and stoic than I do intense or emotional. With both a Scorpio sun and moon, I manage to keep a tight rein on my emotions and think logically through situations.

I often have seen the term intense in connection with Scorpio. Is there real validity to that? Or, is it often used as a descriptor because we read it internet astrology sites? What is meant by intensity in this context?

What words are used to describe non-Scorpios who behave in a similar fashion (i.e. Arian verbal challenge, Virgoan jealous outburst, Cancerian emotional withdrawal, Aquarian fixation on an interest, or a Libra in relentless debate)?