Alternative solution of Galaxy Rotation Curves, expansion of universe and Hubble expansion

The galaxy dynamics does not strictly follow Newtonian law of gravity. But the galaxies have a set pattern of geometry and rotation curve. Introduction of expansion coefficient in einstein field equation and the universe expansion as observed by Hubble remains the unresolved mystery. This gives rise the concept of dark energy. I feel that force of gravity of our universe or matterverse alone cannot construct whole universe. So, there must be another force of gravity, equally strong in nature, is acting as antigravity to our universe. Hence, I have proposed a possible solution by introducing concept of antimatterverse acting as antigravity to our matterverse and working as binary Universe like binary star system. This proposed solution also gives insight of the origin of dark energy, creation of antimatter and fate of antimatter during big bang and observed dynamics of galaxies.