Scans_Daily

She was shot answering the door! You might not have gone through this sort of thing, but it makes one skittish about repeating the action. We're not talking getting to know a co-worker, or meeting someone at Starbuck's and chatting. We're talking moving in with a stranger, which should be out of the question for a costumed crimefighter in general, but even moreso for Barbara in particular, considering the roommate's access not just to secrets, but to the front door!
Barbara obviously recalls what happened as evidenced by the dream sequence, so in order for her living situation to make any sense, we have to infer that she's not too bright or possibly suicidal. (It's like Helena exposing her stomach after having been shot there. Doesn't make any sense.)