Life is full of "mutual reciprocity". If you feel helped by someone, you feel ethically you need to help him too. Likewise the opposite when others feel helped by you, at other times he feels he must help you. If the cycle breaks, there are just dramas that will arise, usually.
But a study published in the Proceedings of the National Academy of Sciences found that if we expect our good deeds to have a reply, we cannot ask for it immediately. In addition, it turns out that retribution cannot be delayed too long because it can enter the "expiration" period. How come? Read the full explanation here!
The study was conducted at a campus hospital, using data of donation requests of more than 18,000. The hospital has provided the best service, both in terms of facilities and services for each of its personnel. But the difference in response occurs as the donation gets longer. The sooner the donation request is submitted after completion of treatment, the more positive the response will be. Conversely, the longer, the more negative the response.
If you ask for help from those you have helped, in their hearts they will feel grateful. Their gratitude arises from a feeling of relief from confusion to return your favor. With you asking for help, they will feel free from responsibility again, there is no feeling of discomfort anymore. Because everything has been considered even.
No need to feel uneasy or reluctant, because precisely in the first moments other people feel helped by you, precisely those who are haunted by an unpleasant feeling of wanting to immediately repay your kindness. If indeed you intend to purely express your actions without saying goodbye, immediately move on and don't think of any response from that person. If the person's response offends you, asking for reciprocation is okay.
As a person who is indebted, repaying too long from the good deeds of others will reduce the impression of his retribution, because he might have said it. In fact it will cause a new feeling of discomfort to him. As a person who feels indebted, immediately ask for help as needed. This is so that the person does not feel you are contacting him only when there is a need, because you are asking for a reply when his unpleasant feeling has not "expired".
So when you help your friends on a weekend that you should have other activity plans, you don't need to feel bad about asking for help from him next week if you really need it. If you take too long to say that you need it, you will feel like a person who "just needs it". Don't worry, goodness is a cycle and indeed as social beings, we should help each other.