What is the biggest emotional barrier that prevents people from taking decisive action in difficult family or relationship situations?

When you've felt jealousy in a complex relationship, what is the immediate physical sensation you experience?
How can partners create a safe space to discuss feelings like external attraction without immediately causing fear or resentment?
Does being wise depend on what we have learned or what others have learned to make us think how wise we think we are?
What do you do when you’ve done something really bad and you feel guilty about it but you don’t want to get in trouble for it?