They both believed in her even when she didn’t believe in herself.

It had been a whim, and there was nothing Magnus attached more importance to than a whim.

I know about parabatai,” said Magnus, an angry, dark undercurrent to his voice. “I’ve known parabatai so close they were almost the same person; do you know what happens, when one of them dies, to the one that’s left —?

Family isn't blood. It's the people who love you. The people who have your back.

Jem cried out with all his remaining strength. You cannot go where I am going! Nor would I want that for you!

'Will,' she whispered against his mouth. She wanted him closer to her so badly, it was like an ache, a painful hot ache that spread from her stomach to speed her heart and knot her hands in his hair and set her skin burning. 'Will, you need not be so careful. I will not break.'

There is no cure for fictional character love, but the plus side is that it is an entirely benign disease with no bad side effects.