I will agree with you on that, but it is buried very deeply. She has a hard time accepting compliments, gifts or sexual validation. Those open up vulnerabilities, so instead she demands respect, even to the point of getting a sense of satisfaction in knowing she intimidates others. That is an emotional connection of sorts, not one that makes her vulnerable, but the other person vulnerable.
The only time I see any vulnerability in her is during sex and only after a strong orgasm. Leading up to that, even while we are having sex, she is usually yapping about something at work or about the kids. After the orgasm, while building to the next one, she can stop talking and appreciate the sex and the intimacy. It just doesn’t last very long.