I'm a tad bit confused on what you're looking for so
here's some psychological stuff:
http://www.mangago.zone/home/mangalist/591398/
and he's more possessive stuff I think you're looking for:
http://www.mangago.zone/home/mangalist/663505/
That something pretty heavy for school boys lmao
- http://www.mangago.zone/read-manga/sayonara_boku_no_goshujin_sama/
- http://www.mangago.zone/read-manga/litchi_hikari_club/ ?
- http://www.mangago.zone/read-manga/gakuen_tengoku_sore_wa_koi_desu_koizumi_kun/
- http://www.mangago.zone/read-manga/the_chain_of_youth/?klrI the second couple kinda fits into that..
- https://myreadingmanga.info/haikei-pass-jougi-yugami-eng/
- https://www.webtoon.xyz/read/my-student-cant-be-a-psychopath/chapter-1/ this one also fits into that
Truth or Dare is a good on. It's shouen Ai.
Psycho
The story is really good but you just need to get over the art (which is pretty bad)
I probably have more ill get back to you
Ok so heres a list. Some are not very fucked up technically but have fucked up moments and i also put some manga i hate here but maybe youll like
* not very fucked up
** fucked up
*** really fucked up
-- didnt like
++ really liked
Glen ++**
Caste heaven ++***
http://www.mangago.zone/read-manga/kakkou_no_yume/ ++*
http://www.mangago.zone/read-manga/goodbye_until_time_to_meet_you_again/ ***
http://www.mangago.zone/read-manga/jikan_akima_jinbutsu/ ++***
http://www.mangago.zone/read-manga/nigai_no_theme/ **
http://www.mangago.zone/read-manga/boku_o_warui_ko_ni_shite/ --**
http://www.mangago.zone/read-manga/shounen_no_kyoukai/ **
http://www.mangago.zone/read-manga/kiraide_isasete/ ++*
http://www.mangago.zone/read-manga/ikujinashi_no_spectator/ --**
You or Shounen Ai but preferably the latter. Looking for big twists and turns and pain. Revenge, fake characters, being used and thrown away, all of that. Would prefer it if the plot was more normal? ie. School life or regular life not like yakuza revenge plot shfhsh