MrNumbers clicks the comic link to relook at that smirk.
... What? That's... it? Oh. Uh, okay. Huh. No, I don't see it.
Yeah, Angus wasn't great for me, but the biggest problem was that the behaviours he liked and encouraged in Faye were the behaviours we know to have been pretty bad her. Something more obvious to us now, and something Angus himself wouldn't have been able to see then; They were the qualities he found attractive in her, after all, the idea that they would be detrimental to her isn't a conclusion he would come to himself.
At the same time, Faye was obviously in a super bad place in her life in a way that she wasn't actually dealing with, and she was otherwise holding Angus back from his own dreams over that. She got pretty damn unlikable right around the time Dora kicked her ass into gear by firing her and forced her to change, if you'll recall.
A loving relationship can still be bad without it being either of those people's faults, and that's kind of a scary thought to think.