In the last few years, I have been bumping into this guy who is homeless and who begs on the street. I sometimes give him money when he begs. Whenever I walk pass him, I give him some change. Lately, He asked me some money and I told him I needed to change my money from a bank note to coins. He then walked with me down the street and we had a good conversation together. Once i changed my money, I asked him "How much should I give you?". He then replied "Anything you can, it's up to you". So then I gave him £3. He then said he wouldn't mind having a coffee with me in the future. Why does he want to have a coffee with me in the future? I really like his courtesy and politeness. What's happening between me and him?