Alexander seems to have a different understanding of what the Shadowhunters duty is then most of the Nephlim that Magnus has known.

Magnus takes a good long look at Alec.watching him apply iratzes as he drips sweat and breathing hard.

"I don't think we're going to get a drink in here; there's much too long a line" he says slowly, "Let's have a nightcap back at my place."