But this dude has been in so many relationships before (including sex friends) and has had a history with leading on girls, shouldn't he already know that it's a no-brainer to not openly engage with people who are obviously flirting? But to be fair, you're right, the development is good, and he did apologize.
I can't really see them as soulmates but you're entitled to you're opinion. Tbh I can't imagine them being together for a long time, to me this relationship looks like a cute college thing but not further than that coz both of their personalities and values are pretty different, but i could be wrong
Akihito is such a bop