Responses

Maybe "Back to School"? http://www.mangago.zone/read-manga/back_to_school/
As warning: it's (partly) about a really toxic relationship, with some heavy stuff like gaslighting and emotional abuse. But it's one of the best potrayings of these topics I've read in BL up until now.

Similar in terms of reincarnation
http://www.mangago.zone/read-manga/film_emperor_s_reincarnation_script/
Is there any bl thats similar to At the End Of the Road? (づ ̄ ³ ̄)づ