There is no such attraction, same asyour question doesn't make sense. The Delta v has to do with the net force, what's actually happening, but this "attraction"

There is no such attraction, same asyour question doesn't make sense. The Delta v has to do with the net force, what's actually happening, but this "attraction" is described as "what if you took away one of the forces impacting this" For a curvature based model, the delta v being 0 means that the gradients around each body are equal to each other, but that doesn't say anything about what's causing those gradients. To find this "attraction", you have to calculate the curvature while leaving some sources out