Gojo Satoru was destined to be alone bcs fighting with everyone else holds him back and yet he didn't understood that until it was too late. Until the universe, that same universe he can show you in his domain, reminded him in the worst way possible. Geto Suguru was that way.

Geto Suguru was never meant to be alone, his cursed technique works better with others. He had a family, he had friends and when he left them all behind he did all for their sake, and for two orphan girls with nothing in the world. And even then he made himself a new family. Geto Suguru wasn't meant to be alone, in fact he didn't even die that way. Gojo Satoru made sure of that.