Left the house

Hi, My wife is elder to me by 3yrs. When I fell in love I didn't know about her character. Later as years passed by I could see that she is dominating, adamant, possessive, etc. Now I have landed in a situation where all her relatives have left her and her parents passed away. She has health issues. I have to do all the work right from outdoor to indoor cleaning, etc. In addition to working. She cooks once a week for her lunch. Both breakfast and lunch I need to bring from outside everyday. Last week the situation became worse and she started to stop me from going to work also. She started to threaten me to accompany me to work. So I had to leave the house. Now I don't know what she might be doing as I changed my mobile# and she doesn't know my office. I want a divorce and many times I have asked for mutual consent but she doesn't want to give a divorce as she doesn't have anyone and no income. In 2012, I had an affair with another girl and she came to know about it. But later I left that girl. Now also she thinks I have an affair. So what are the possible actions she might take and how can i be prepared?