Value your parabatai," he said. "For it is a precious bond. All love is precious. It is why we do what we do. Why do we fight demons? Why are they not fit custodians of this world? What makes us better? It is because they do not build, but destroy. They do not love, but hate only. We are human and fallible, we Shadowhunters. But if we did not have the capability to love, we could not guard humans; we must love to guard them. My parabatai, he loved like few ever could love, with all and everything. I see you are like that too; it burns more brightly in you than the fire of Heaven

Maybe that__ why I was so afraid of Sasha__ love. With him comes the remembering part that I was so good at forgetting.~Piper - 'Breathe Me

And this, my friends, is how love f*cks up your life.

I believe in good and evil," said Jem. "And I believe the soul is eternal. But I don't believe in the fiery pit, the pitchforks, or endless torment. I do not believe you can threaten people into goodness.

I wish I knew how to get you back. And apparently fate won't let me give up"From Central Park Song: a Screenplay

Perhaps fate brought us together,And the incidents in between made us close,Falling in love was a simple choice,But breaking my heart, that was yours.