“I always thought love made you stupid. Made you weak. A bad Shadowhunter. 'To love is to destroy.'I believed that[...]I used to think being a good warrior meant not caring,[...] And then I met you. You were a mundane. Weak. Not a fighter. Never trained[...] Love didn't make you weak, it made you stronger than anyone I'd ever met. And I realized I was the one who was weak.”

“I used to think being a good warrior meant not caring,” he said. “About anything, myself especially. I took every risk I could. I flung myself in the path of demons. I think I gave Alec a complex about what kind of fighter he was, just because he wanted to live.” Jace smiled unevenly. “And then I met you. You were a mundane. Weak. Not a fighter. Never trained. And then I saw how much you loved your mother, loved Simon, and how you’d walk into hell to save them. You did walk into that vampire hotel. Shadowhunters with a decade of experience wouldn’t have tried that. Love didn’t make you weak, it made you stronger than anyone I’d ever met. And I realized I was the one who was weak.” –Jace pg. 531-532”

“Love didn't make you weak, it made you stronger.”

“I pulled them out of the fire myself. I read them all. Every word you wrote. You and I, Tess, we're alike. We live and breathe words. It was books that kept me from taking my own life after I thought I could never love anyone, never be loved by anyone again. It was books that made me feel that perhaps I was not completely alone. They could be honest with me, and I with them. Reading your words, what you wrote, how you were lonely sometimes and afraid, but always brave; the way you saw the world, its colors and textures and sounds, I felt-I felt the way you thought, hoped, felt, dreamed. I felt I was dreaming and thinking and feeling with you. I dreamed what you dreamed, wanted what you wanted-and then I realized that truly I just wanted you. The girl behind the scrawled letters. I loved you from the moment I read them. I love you still.”

“I love you, Tessa, and I have loved you, almost since the moment I met you.”

“Jem--Jem is all the better part of myself. I would not expect you to understand. I owe him this.""Then what am I?" Cecily asked.Will exhaled, too exasperated to check himself. "You are my weakness.""And Tessa is your heart," she said, not angrily, but thoughtfully. "Not a fool, as I told you," she added at his startled expression. I know that you love her.”

“I was thinking about the first time I ever saw you," he said, "and how after that I couldn't forget you. I wanted to, but I couldn't stop myself. I forced Hodge to let me be the one who came to find you and bring you back to the Institue. And even back then, in that stupid coffee shop, when I saw you sitting on that couch with Simon, even then that felt wrong to me-- I should have been the one sitting with you. The one who made you laugh like that. I couldn't get rid of that feeling. That it should have been me. And the more I knew you, the more I felt it--it had never been like that for me before. I'd always wanted a girl and then gotten to know her and not wanted her anymore, but with you the feeling just got stronger and stronger until that night when you showed up at Renwick's and I knew.”