Hi Misbah, even people who are good and generous, although they don't actively seek anything in return for their good deeds, can be disappointed if their is no form of acknowledgement. They like to at least know what they did helped someone or was appreciated.
You my friend are a good person. From my dealings with Natalie she is as as well, and her advice to you was wise and helpful. I remember Val saying that you were too nice as though it was something to be ashamed of. Well it isn't. Just keep being you and don't change.