Huh, the way I saw it wasn't "Angus is creepy," so much as "Angus doesn't have much game."
i.e. He really only knows one way of getting to know/interacting with women.
If he is attracted to snarky, clever women, and Faye was like that, and Renee was like that, then it's understandable that he would use similar methods in interacting with them. Dear God, that last sentence is probably a grammatical mine-field, but I am far too tired to check.
EDIT: I don't think that Angus was doing what people think he was doing...From what I gather it went down like this:
"Hmm, well Faye is cool and fun to riff with. And Renee is cool and fun to riff with. Now Faye is not really warming up to me, but it looks like I have a shot at something with Renee."
or maybe Renee made the first move, hell, we don't know! Don't assasinate his character yet folks! We're all human!