It's a hard way to live.
For the short-term, squirrel away a little cash...enough to get beans or something for a couple of days and maybe a bed at a hostel. Keep your warmest jacket near the door with spare toothbrush, toothpaste, socks, can opener and a bar of soap and razor in the inside pockets. If you don't have a mobile phone get a cheap pay as you go. If you don't have a library card, get one as they usually have computers/internet there.
I just keep picturing the police arriving with your lady crying and her family pointing at you. Any sort of charge now would be bad.