Quote Originally Posted by Buffalobiian View Post
I'm sure Taichi just didn't want Arata's involvement in their birthday party - not so much being the relay point. He doesn't like Arata and gets pissed that Chihaya is so obsessed about him.
Not wanting to serve as a relay point for a person you don't like and are envious of is 100% natural. It was just one facet of the bigger picture.