Prov 11:6 speaks to me a lot about how to do good and not live in expectation of receiving back from the same person or not to be offended when there is no returned favor. I have come to believe that if I’m able to offer help to someone, it’s actually God giving me the capacity to help. Same way if I need help he brings someone he has blessed with the capacity to help. So I don’t get disappointed because someone went AWOL on me after helping them.