Tell yourself whatever you need to in order to convince yourself that you're an intellectual. The rest of the world know what's going on with the character and the show.
Uh, ... what?!
And she and Jim broke up only a third of the way through the season, so it seems to me she was always meant to break up with him. They wouldn't have made her such a screwed-up character otherwise.
Because people never break up and then get back together again further down the line, do they?
Barbara could end up going down a dark path, and then Jim could be the one to pull her back from the brink, which rekindles their love for each other.
Sure, they could go this route. They also could not go this route.
I don't think Christopher is commenting in absolutes here, he's just giving his impressions on the basis of what we've seen so far, and on that basis, I tend to agree with him.