Magnus admires his boyfriend.

'"Guilt is powerful," he said. "It has teeth and claws and once it sinks them into you, it doesn't let go. You'll spend the rest of your life wondering what you could've done differently. I know guilt, Alec, and you don't want to do this to yourself."' Max dies. Alec doesn't fall apart, but only because Magnus holds him together.

Magnus is all about color. Alec isn't, though not for lack of trying. "If you ever get fired from being High Warlock, you'll have a lucrative career as the paint person in a Home Depot or something."

Post City of Ashes, Magnus/Alec. "Jace was one thing, but this – I cannot, in all good conscience, pretend this isn’t going to affect our relationship."