I'm thinking that Ven and Roxas both have the same body, yet different souls.
In the secret ending, MX freezes Ven, but at the same time, I think he uses him to summon Kingdom Hearts. We know that Ven is still alive because he moves his eyes, but maybe he never recovers completely from that and his soul passes on. (his body is still there, he's like a veggie)
When Sora becomes a heartless, he makes a nobody, however, it was created differently, so his nobody had no body, as Sora still had his. His nobody had a soul, but no body to accompany it. Maybe that soul found Ventus and inhabited him because he was also a keyblade wielder, or he made some kinda connection with Sora in BbS.
We still don't know who Xemnas' "friend" is... could be Ven or Terra. Most people believe it is Ven, and as do I.
But he hasn't found the Chamber of Waking yet, so how do we know if his "friend" is even there? Maybe he left when Roxas was born from him?
In the secret ending, MX freezes Ven, but at the same time, I think he uses him to summon Kingdom Hearts. We know that Ven is still alive because he moves his eyes, but maybe he never recovers completely from that and his soul passes on. (his body is still there, he's like a veggie)
When Sora becomes a heartless, he makes a nobody, however, it was created differently, so his nobody had no body, as Sora still had his. His nobody had a soul, but no body to accompany it. Maybe that soul found Ventus and inhabited him because he was also a keyblade wielder, or he made some kinda connection with Sora in BbS.
We still don't know who Xemnas' "friend" is... could be Ven or Terra. Most people believe it is Ven, and as do I.
But he hasn't found the Chamber of Waking yet, so how do we know if his "friend" is even there? Maybe he left when Roxas was born from him?