For example, in the belief that "every little penny counts and adds up" **some individuals are unwilling to contribute a single dollar for a party, or they don't bother to **congratulate or even get a nice card for someone who previously gifted them in a mutual celebration (graduation, wedding, baby shower, etc). In my opinion, this takes place when excessive practicality overpowers the importance of emotional consideration and reciprocation. And this especially creates a problem when the overly-practical person fails to realize that there is a deficiency/lack of reciprocation in their relationships with others. And it results in one person taking taking and taking....and not realizing that some giving is also essential in forming bonds with others.
I sooo know what you mean, I've has the same feeling with some of my friends! But my mom always tell me never to think like that, and never feel as though a friend is not recipricoting back to you! You should give gifts out of feelings of sincere love, and for the sake of Allah! And never never expect things in return! Or else your gift is to waste!
If the friend doesn't recipricote to you back, Allah inshallah will in one way or another, or maybe that person has reciprocated in other ways that you are not noticing. Or maybe the person is sincerely busy and has other obligations, and just hasn't been able to get to that point, or maybe that person hasn't thrown a mutual celebration such that an oppurtune time was made to reciprocate the gifts back!
My mother always says always think good about the other person!