Am I just being dramatic?

Ok so I have this selling app, and a lady from my town one time needed a jacket for her son, I was feeling kind and decided to give her a $200 dollar snowboarding jacket for free. She was low on cash and her son needed a winter jacket so I decided to be kind. She never said thank you. I just let it go and moved on. The other day I posted an ad for a kitchen item I needed. She posted saying she had one. I said I was interested and she told me she wanted 5 bucks for it. 5 bucks isn't a lot but if someone did something nice for me like I did I just would have given them the item for free to repay the kindness :/