if it isn't on there, i reccommend
http://www.mangago.me/read-manga/spring_snow_odongtong/
http://www.mangago.me/read-manga/back_in_time_to_you/?x9RV
http://www.mangago.me/read-manga/not_for_the_faint_of_heart/
http://www.mangago.me/read-manga/banana_fish/
http://www.mangago.me/read-manga/hebi_no_seikatsu/
(If you are confused, see my explanation: http://www.mangago.me/home/mangatopic/6455693/ )
http://www.mangago.me/read-manga/the_specific_heat_capacity_of_love/
There are people seeking sad BL almost everyday. I made a list with the ones that really messed me up! Not just the " was harassed and shunned for being gay in high school" sad but "someone died or was abused by their parents or is severely depressed or disturbed" kind of sad! Some are tragedies and some have a happier end
http://www.mangago.me/home/mangalist/1017755/?filter=&page=4