Many in the field of social psychology suggest that there is always some level of self-interest in any type of giving act. This can include doing something for someone else just to make oneself feel better. The most common explanation tends to involve some kind of exchange, meaning that people do things because they want something in return. Social exchange theory basically states that one will be satisfied in a relationship if the rewards outweigh the costs and they feel that the other person they are with is worthy of them (Myers & Twenge, 2018). Relationships are really composed of exchanges as well. Do people tend to stay in relationships where the costs outweigh the benefits? How might that impact the overall relationship?