Alec Lightwood: I… I can’t breathe. I can’t do this. I thought we were doing the right thing, but… this isn’t it.

Lydia Branwell: You don’t have to explain.

Alec Lightwood: Lydia, I’m sorry.

Lydia Branwell: Hey… you deserve to be happy. Okay? I’ll be fine.

From Shadowhunters – Season 1 Episode 12: ‘Malec’ (1×12)