Self-preservation is a natural instinct. It keeps us out of harm's way. It is our own internal "spidey sense." If you've ever had your heart broken, love can make you a little gun shy. You become protective of your emotions. You don't want to fall in love too quick or too fast. You want to take things slow. Falling in love can be terrifying. Vulnerability is seen as weakness. You isolate yourself and your heart from the very thing you say you want. You find fault in everything and everyone. Being vulnerable is the only way to get what you truly desire.
"What makes you vulnerable makes you beautiful." - Dr. Brené Brown