everthing you’re asking for: https://www.mangago.me/read-manga/the_world_without_you/
Thank uuu
i think you are going to like this one very much https://www.mangago.me/read-manga/the_world_of_pieces/ this has all the tropes and its near its end so you'll get to binge read it!
https://www.mangago.me/read-manga/the_foul/
https://www.mangago.me/read-manga/yang_il_woo_and_i/
https://www.mangago.me/read-manga/bad_friend_euneun/
https://www.mangago.me/read-manga/die_in_my_arms_kaizen_scan/
im not sure if the others are what you are looking for but they are pretty good and angsty!
I am craving something messyyy, toxic and full of angst but also with good writing with character development