You are always free to fire your attorney. Look at your fee agreement to see what kind of refund you may get. A lawyer has to refund any unearned portion of the retainer.
There's no reason in the world you should feel obligated to work with someone you feel isn't committed to helping you.
If I subjectively really believed my attorney was selling me out, whether it was true or not, I'd get a new attorney and try to get a refund. Under these facts, the attorney client relationship seems to have broken down.