According to our current understanding, dark matter does not repel regular matter. Instead, it interacts with regular matter through gravitational forces, similar to how regular matter interacts with other regular matter.
Dark matter is a form of matter that does not emit, absorb, or reflect electromagnetic radiation, making it invisible to direct detection. Its presence is inferred from its gravitational effects on visible matter and the structure of the universe.
Gravitational interactions are attractive forces, meaning that matter, including dark matter, is drawn towards other matter due to gravity. Dark matter and regular matter both contribute to the overall gravitational field in the universe and can influence the motion of each other through their gravitational effects.
It's worth noting that the specific nature of dark matter remains unknown. It is an active area of research, and scientists are investigating various theories and possibilities to understand its properties and interactions more comprehensively. However, based on current knowledge, dark matter is not thought to repel regular matter.