Reality often strikes hard against those who show humility.
Once one reveals tension, timidity, or retreat in interpersonal interactions, it becomes easy to become a target of malice.
In any relationship, maintaining a sense of mystery and moderate distance can create a powerful deterrent.
Especially in newly established relationships, it's essential to uphold boundaries and avoid allowing others to easily obtain gratuitous goodwill — it is human nature that while free things are sought after, they are rarely cherished.