Psychologists have long been interested in pairs whose bodies are very different from each other.
We naturally choose partners who are like us, which is called homogamy. These relationships go against that trend.
Looking into the psychology behind these draws, the pull of differences may come from the need to make up for lost time. A tall person might be attracted to a shorter partner because they think the shorter person is more agile or delicate, while the taller person might like the shorter person’s high presence and how it makes them feel safe.
In the same way, when there are big differences in weight, it could be about balancing personal insecurities or questioning social beauty standards. People often get together in these situations because they are subconsciously trying to find balance. The unique qualities in a partner may make up for what they feel they lack.
In the end, psychology is big and complicated, and desire has many sides. It goes beyond physical traits and focuses on how deep and complicated our emotional and mental needs are.