Connaught Place beggars

So l was just across hanuman mandir, i was pretty emotional, and you could tell I had just spent the past hour crying. Quite vulnerable state overall. There was a lady with some mata Rani ki chadar in her basket and she asked for money, i always avoid such people, but idk what came to my mind, (pata hai meri galti hai) i pulled out my wallet, i checked I didn't have any change so i was saying sorry and was about to leave but before that i also checked my pockets in case i had a 20 somewhere. I pulled out a note thinking it was 10/20 but it was a 500 which i obviously had no plan on giving to her, so just I was about to put it back in my pocket she touched that note to her basket and snatched it from my hand. I was so baffled at first that I couldn't even react, I asked for it back, she said ab toh rakh diya ab wapis nahi hoga then she had the audacity to ask for another note by saying agar ghar pe do bacche ho toh ek aur bada note nikaalo touch it with this basket and keep it with you for your expense. what the actual fuck. Bitch I know tu woh bhi cheen hi legi. Anyways, I told her to give it back. But uske baad her and her friends kept touching me on the arm and started saying stuff bhagwaan ke nam pe and I couldn't take it anymore so I left. But since then i just have INSANE guilt. Because I could've handled this so much better and for fuck's sake bhai main iss 500 ko KAISE BHI AUR USE KAR LETI ir choro ko kyun jaana tha