Does it really matter what her intentions are for sending those texts? Will the answer make any difference after two years? I think Englishgarden was spot on about continuing therapy to find out why these infrequent communications still trigger you. Like she mentioned, "even though on the surface it is over, underneath there is still a connection."
I have had relationships that have hurt me too. I would assume many of us have. But, there comes a time when we need to examine ourselves and figure out what our part was in the relationship and why we drew that kind of person to us and why we let that person continue to hurt us. It's MHO that when we are able to stop thinking of ourselves as the victim and realize that we are in control of our lives. We can choose to heal. With that healing comes peace.