This web site is not meant as a substitute for face to face psychotherapy. It's normal to feel quite sad after a breakup. If this persists you may be experiencing clinical depression, if so please get professional help. Only you know what's best for you. If you have a therapist please discuss your feelings and questions with him or her.
Questions are welcome to.
Once you've broken up, make it a clean break. You've probably done as much talking it out as you need to for now. Worse than that the healing has to start all over. Don't pick at it. Let it heal over.