Value of Future Payments

I LIVE IN LOUISIANA, I WAS HELPING A “FRIEND” WHO WAS IN A BAD LIVING SITUATION, I MOVED IN WITH HER IN MARCH OF 08 AND MOVED OUT JUNE OF 08, REASON BEING SHE DIDN’T PAY A LIGHT BILL WHICH I PAID HALF ON. INSTEAD SHE USED THE MONEY ON A VACATION AND THE LIGHTS WERE TURNED OF IN AN ALL ELECTRIC APARTMENT. CONTRIBUTING FACTORS THAT I DEALT WITH ON A DAILY BASIS WAS MARAJUANA 24/7 AND FREQUENT MALE VISITORS WHICH ALL THREE ARE A VIOLATION OF A VERBAL AGREEMENT BETWEEN US AND I’M WONDERING IF I CAN BE HELD RESPONSIBLE FOR ANY FUTURE RENT OR UTILITIES CONCERNING THE RESIDENCE