Psychologist Jennifer Freyd's research on betrayal trauma explains guardedness as a result of past violations of trust by dependent figures. This trauma isn't just a mental barrier but a physical one, where the body reacts automatically to protect itself from re-experiencing pain. Guarded individuals are exceptionally perceptive of others' emotions but maintain a high barrier for their own disclosure.
From the outside, guarded behavior appears distant and cool. Inside, it's a cautious assessment of safety. These individuals need consistent, non-threatening interactions to overcome their barriers, a slow process that requires patience and careful handling of their personal information.

Guardedness comes at a cost, isolating the individual despite social connections. It's the struggle between protecting oneself and wanting to be seen fully by another. Overcoming it requires finding a trustworthy person and gradually trusting them more, building evidence of safety over time.