Can somebody suggest a yaoi manhwa that is written by a man?? I just want to see something...

Idk yaois but this are BLs
https://www.mangago.zone/read-manga/here_u_are/
https://www.mangago.zone/read-manga/starting_with_a_lie/
https://www.mangago.zone/read-manga/all_of_you/
https://www.mangago.zone/read-manga/until_i_meet_my_husband/

I feel like I'm going to cry reading all that... Thank youuu

what you're looking for is called 'bara' it's bl written by men, for men. the problem with that is most men who write bl do so under a pseudonym. plus, a lot of manga sites just put any series with masculine and sexual MCs under bara even if it's written by a woman. therefore anything I suggest may be wrong, but I'm pretty sure these are all bara series:

https://www.mangago.zone/read-manga/saha_lee_uin/
https://www.mangago.zone/read-manga/liebling/
https://www.mangago.zone/read-manga/priapus/
https://www.mangago.zone/read-manga/ookami_shounen_to_hamu_no_hito/

j to warn you though, idk if you'll like any of these. if you're looking for bl that's more on the softer side and doesn't have abuse/cheating/rape, or as you said it torture, I'll recommend these:

https://www.mangago.zone/read-manga/here_u_are/
https://www.mangago.zone/read-manga/star_x_fanboy/
https://www.mangago.zone/read-manga/heesu_in_class_2/
https://www.mangago.zone/read-manga/fools/
https://www.mangago.zone/read-manga/sasaki_to_miyano/
https://www.mangago.zone/read-manga/salad_days_tang_liuzang/
https://www.mangago.zone/read-manga/19_days/
https://www.mangago.zone/read-manga/dream_away/
https://www.mangago.zone/read-manga/tu_quoque/
https://www.mangago.zone/read-manga/men_s_wear_store/

Thank you for all the foods you blessed me today. I wish you all the good things in life