I'm not sure if this was toxic or...???

This rant will possibly have some spoilers and I'm sorry but I'm just so confused! This left me with like all questions UNANSWERED! The seme Kouda was having...nightmares? I guess about his married friend Takahasi which, honestly that whole thing made no sense to me.
At first I thought they were dreams of hin playing rugby with Takahasi, but then it sounded like Takahasi got hit by a car or something? Like WHAT?! Explain sir! That little memory did not help at all! Then, Takahasi has this creepy cult family and his baby girl look like a grown woman with possible Benjamin Buttons or something and I'm just like...WHAT?!
Kouda is CLEARLY a stalker and the Uke is so insecure that he finds the behavior endearing and I'm just like, okay serious, are we going to get any actually details here or is it just going to continue to be shallow like this? I want to say this was low-key toxic but truthfully... I just don't know. This was confusing af...
I did get a good laugh from watching Kouda sleep on the airplane though. That was funny af.