Originally Posted by FeedOnATreeFrog
Talia was an ex-member? When did she leave?
She wasn't there when Bruce was training with Ra's. In fact, Ra's would've mentioned her if she was still part of the group, especially sense Ra's was planning on Bruce to "lead these men".
They made no mention in TDKR that she was a part of the group when Bruce was training with Ra's. Therefore, we assume that she left with Bane during the events of BB.
In fact, this is a major plot hole in my opinion that Nolan's team overlooked. I think it was lazy on their end to just throw her character in the movie when they clearly didn't anticipated it after BB or even TDK.