Well. That's something to be connected to - everyone wants to kill me. Rather, Tidus figures that Teddy here wasn't referring to that, but given the mood he seems to take on after it, losing his memories and apparently having people from the future less than pleased about his existence...

"Uhh..." Give him a second here, to take it in, or - try to. "Well, I didn't have anyone after me..." Or didn't know anyone in that situation, but this seems less about him anyway, and more about a guy lost, confused and frustrated. Tidus can pity that.

"Is this about that science thing you mentioned before? You do something and it makes a big mess out of everything?"

They're here to give people some company, and support. He might as well see if he can give that here, now. ...try to.