I don't think she's that shallow, actually. About the scars, I mean.

[Though, really, Dick's pretty sure that Garrus is still pretty good looking for his species. It's just that he's never met another Turian.]

[His lips tighten into a line, though, one bordering on a frown.]

Just as a note. One thing I've learned about women of any species? Don't tell them what they deserve. Taking their choice away from them before they've even had a chance to make it? Tends to piss them off.