Lmao you're reaching. What obsession with figuring out why Tia was so scared of him? As far as HE KNEW he did nothing to her and had been nothing but cordial to her, so of course he would wander why she was so terrified of him for no apparent reason. It's a natural reaction, I would do the same. And it is a different timeline, hes not even doing the same things he did in the past and neither is Tia. Infact, you can argue that side by side the Tia from then and the Tia from now are different people.
Even later in the chapters of the manga (around the 70s or 80s I think, cant remember but I was reading them yesterday) Tia will think to herself "...he would have never done this in the past, maybe he has changed" and her feelings about that past change and she willingly spends her day off with him, in his office, trying to help him.
Not quoting this word for word, but that's what it said essentially.
So, I hate to break it to you, but to hold him accountable for things this new version if himself has not done is harsh, especially when the character is not inherently evil in this moment. In other time travel books, i could why everybody hates them (they are evil in the past and in the present). But that's not the same. He isnt that version of himself, and that is why the author is comfortable with making them end up together.
On the bright side, they're older in those chapters I mentioned so they're all fucking great (even allendis looks and acts not as creepy) and she's working alongside my fave redhead (and still the fiancee of the prince).
It will not happen, and the fact that everybody hates the prince for something an alternate version of himself did is ridiculous. Give the new character a chance. Also, of course he's curious as to why she seemingly hates him for no reason (to him) but knows everything he likes? Would you not be if you met someone like that in real life?? At least he read her letter with an open mind and decided to leave because he recognized that was what was best for her.
I'm looking forward to seeing how he'll deal with that. He is still better than the green haired kid, in my opinion. (Nobody can top my fave redhead though, but I think we all know she's gonna end up with the prince. Everybody was saying spoilers and shit, so sit back and enjoy the ride).