Why did Purple Star give up the edge?

The reason why this galaxy abandoned the positive edge is because it can't continue to develop.

As a celestial body, the law of motion of purple MSI is dominated and influenced by cosmic forces, which may lead to interaction or gravitational interference with other celestial bodies, thus making the original positive relationship unable to continue to develop. In its own development, MSI may encounter some difficulties or challenges, for example, its environment is not suitable for the continuation of positive relationship, or it has some special attributes or properties, which makes it difficult to establish positive relationship with other celestial bodies.