I am paying to rent a room from a women who is renting a house. We do not have anything in writing but the verbal agreement was that I would stay for six months. Ending in July 2014. I decided that I want to leave early because the women has made living their very uncomfortable. I paid for February and March on or about the 15th of February with the intention of staying. A few days after I paid her I told her I was going to leave. I asked her to return the money I paid for March as I would not be their. She refused and said she would pay no more than half the rent as this was considered my 30 days notice and the middle of March would be the end of 30 days. I told her if she would not return the money for March and as I have already paid for that whole month I would be staying and leave by April 1st. She is refusing to accept this and says I must be out by the 15th. She has also locked me out of the house on more than one occasion since this dispute occurred. I am not on the lease, I have no written paperwork and I am not sure if the owners of the property are aware that she is renting to me. I do not know what if any grounds I have to stand on. Please help.