“There is no pretending", Jace said with absolute clarity."I love you, and I will love you until I die, and if there's a life after that, I'll love you then."
She caught her breath. He had said it-the words there was no going back from.”

“Clary?” Jace tilted his head to the side, studying her face. “You do—you still love me, don’t you?”

“I love Jace Lightwood,” she said. “I don’t know who you are.”

“Say it," she said.
"Say it sober."
"I love you," he said.
"I don't want you to say it back unless you mean it, but I love you."
She leaned back over him, and pressed the pads of her fingertips against his.
"I mean it.”

“Jem told me what Ragnor Fell said about my father,” Will said. “That for my father, there was only ever one woman he loved, and it was her for him, or nothing. You are that for me. I love you, and I will only ever love you until I die —”

“Never," said Gregor. "I'll never get rid of you, no matter how hard I try." It was no longer an effort to say the words. "I love you."
"I love you, too," said Luxa.
After that there was nothing left to say.”

“You said go to her, and I let pride stand in my way. You said she needed me, and I didn't believe. You said love her, and I thought it would be easy.”

“I love you," he said, his voice catching. "When I thought you were going to die, I wanted to die.”

“She said, "I wanna learn a love song full of happy things."
She said, "I wanna learn a love song; won't you let me hear you sing?"
She said, "I wanna learn a love song, I wanna hear you play."
She said, "I wanna learn a love song before you go away."”

“Say it,” she said, and he said, “I love you. I’ll always love you. Forever. It’s a life sentence. Now put the damn ring on.”

“I will not fall in love with you," she said. "I can't let myself. I won't."

"That's all right. I'll love you enough for the both of us.”