The protector is an angel-monster, built to protect angels from any foe. They love with passion and will do anything to keep their angel safe. They are the soulmate of the angel and the bodyguards of the divine realm.
Every blessing comes with a curse. That can be with one person or split between two. Assholes take the blessings and pass the curse onto others, that's power abuse. Good people take on their fair share of curse or more in order to bless others. Thus when an angel steps from the shadows to save others they come with an angel-monster. Anyone who tries to curse the angel gets monstered by the angel-monster, the protector. Thus curses aimed at the angel rebound in magnified form. The angel-monster takes the magnified blessing and keeps care of the angel. Another way to say this is the good shepherd the crook - it's the only way this can work.
When you level up, you show others how to do the same. You are now a master of their level and a learner in the one above. As you wish to find help in you new level, be the one who raises others from below. Level up as many as you can, that is how you best protect them.
When a protector can protect themselves they are ready to do their duty and give to others, until then they require protection from giving too much.
Real love is a protector, a defender, a ride-or-die connection that stays with you for always and in all ways. It is raw and it will roar for you if required. It will stay with you in quietness and be your comfort. Real love will celebrate with you, and raise you up. Real love will be okay with your sadness and kiss the scars you hide from others. It is rare. Treasure it. Keep it as long as live. For real love is the greatest blessing heaven can give.