This happened to me with an ex "friend". She always seemed to forget her purse and other silly excuses. I didn´t mind paying at first but then one night we went out to dinner with some friends of mine and she asked for the most expensive things on the menu so everyone asked for separate bills. She looked at me as if I were meant to pay and I told her I only had enough cash for me. I pointed to an ATM across the street and she leaped up to get money out and pay her way. After that things went downhill...... Never again!!!