Since the separation you haven't been too bad. Before that I felt you weren't being confident and strong enough.
Things I would change: 1) She can express that she is having a hard time, but from now on you aren't "surviving", "hanging in there", or other versions of weak. You are good or great.
2) Try a little more being unavailable, even if it's just going to the gym or a walk.
As for the talk...I would DEFINITELY say that you did fine letting her talk. Women connect (fairly frequently) through expressing their feelings and being HEARD. Keep being understanding and a good listener. DON'T be in the habit of bailing her out though. Listen, understand, and symphatize. Don't suggest how she can fix her problems. Let her get off the phone feeling a "high" from having venting to you.
You cannot be lonely if you like the person you're alone with. Dr. Wayne Dyer