She said the feelings for him just came back.
And her feelings for him were enough to get you dumped. That's also a fact you seem to ignore. Talaniman Rule- Stay away from any one that has an ex involved in their lives.
Talaniman Rules- when you get dumped, don't go back to get dumped again
If she hasn't gotten over him yet, it may take a lot longer, if she ever does. Why wait when you could be doing your thing, and exploring better options, and opportunities. Waiting for someone to get over someone else is insane.