Hi, I'd like to help you with your question.
It sounds like you have been emotionally abused by this man. He has used you. And now he is angry and using his outbursts against you when you ask for your money back.
His history of being abused is bad, but it does not give him the right to hurt you as a result. He should not have borrowed the money if he had no intention of paying it back.
This is a relationship you need to get out of right now. Do not contact him again. If you choose to still pursue getting your money back, use legal means. Contact an attorney or if you have local civil courts that will hear your case without an attorney, go that route. Allow the legal system to work for you so you no longer have to contact this man.
In the meanwhile, start caring for yourself. This man has taken his negative emotions out on you but that does not mean you have to believe it. Consider seeing another therapist to help you work out how you feel about this and get you back on track. To find a therapist, talk to your doctor about a referral. Or, if you attend church, talk with your pastor about how you feel. You can also search on line at http://www.bacp.co.uk/ or http://www.cpdirectory.com/cgi-bin/index.pl. You may have already tried therapy and that is ok, but you may need some additional therapy if the first time did not help you resolve how you feel.
Here are some other resources that can help you:
Encouragements for the Emotionally Abused Woman: Wisdom and Hope for Women at Any Stage of Emotional Abuse Recovery by Beverly Engel
Verbal Abuse Survivors Speak Out; On relationship and recovery by XXXXX XXXXX
You can find these books on Amazon.com or your local library may have them for you.
Let me know if I can be of further assistance,