To be very blunt, you are NOT currently a man a woman would be a fool to leave. Indeed, I'd say a woman would be unwise to be involved with you right now, and not just because you are married. You have money=love issues, problems with physical and verbal abuse, emotionally you are all over the place, and monogamy is a problem for you. Stop dating, stop worrying about W. Work on yourself. Really.
What did your girlfriend say about you trying to reconcile with W?