YES, not only super suspicious, but like instant heart attack because his evil likeness hella traumatized him. Imagine Baralai needed a whole year to recover from that mess, physically, emotionally, mentally, and psychologically. So of course when once they meet for the first time Baralai would be very wary, but polite as always, and Tidus would just be giving him the look, because he'll be wondering 'Is this the guy Yuna was talking about?' (even though I highly doubt there existed any truth to Yuna's 'I like someone else' BS), but yeah. Plus, Tidus won't take kindly to the fact Baralai was Seymour's vassal once upon a time, asjhdgajf. What will ultimately break the ice between them is when Tidus watches him at work, delegating outside the office, building bridges, and making public appearances to quell outbreaks and unrest, and he'll realize Baralai really does care about Spira.
But anyway... Reading through Chapter 18, LOVIN' the canon bits! Now I know what Spira's stance on "Gods" and "Fayth" are. Interesting. I really wanna look up real life references of those statues, see if they are inspired by actual mythology. (I still have to read the rest of the chapter, though.)
Everything's a contrived mess past FFX-2. XD I'm just here for the roller coaster ride.
I do plan to read the entire Spira's Dream trilogy (plus prequel), among other Tidus/Yuna fics. There's plenty to glean from despite my criticism for certain things. It's just nice to read about other people's fanon novels; it helps me develop my own headcanon. <3