He probably does, since he said in the episode Ninja Nightmare, "You're beautiful", then thought "Did I just say that aloud?"
Also, in the 2nd series, when Zoe trips and (seems to) get hurt, Rex was the one who helped her up.
It is unknown; their has been no proof for either side.
No. In the end, everything is restored to normal and Rex returns to his own time.
Rex owns the Carnotaurus, Ace.
Rex is latin for King
Perhaps. However, in Japanese culture there is a strong sense of 'nakama', which is on the line of 'Best Friends Till Death Do Us Part', so it is possible that she cares for Rex since they were children, inferring that she has known the two since she was more or less born.
Rex's dinosaur is named Ace, meaning "First" or "The Best".
You can choose Max or Rex.
just look in your Dinsaur king cards.
As fast as you can
yes, at the end
Yes
t rex
none of them